This questions has been a headaching me for a while. Please if anyone knows this answers?!

Answers

Answer 1

Answer:

Explanation:

1 represents the element, Hydrogen

It has 1 shell/electron

Because hydrogen has only the one electron/shell, it can also lose that electron/shell to form a completely empty n = 1 shell.

Related Questions

Calculate the following to the correct number of significant figures 0.0041 cm x 2.00 cm
x 501 cm

Answers

Answer:

4.1 cm³

Explanation:

When multiplying, the product must have the same number of significant figures as the factor with the least number of significant figures. 0.0041 has two significant figures, 2.00 has three significant figures, and 501 has three significant figures. The answer will have 2 significant figures.

0.0041 cm × 2.00 cm × 501 cm

= 4.1082 cm³

≈ 4.1 cm³

WILL GIVE BRAINLETS

What is the landform in the image? A.Dune B.Hill C.Plateau D.River

Answers

Answer:

the answer is c

Explanation: bc it can't be a hill or a river and a dune no way so it is c a PLATEAU

hope this helped have a great day

C. Plateau
There is no water to be a river landform and no hills to be a hillbilly platform

matter that has a uniform and defined composition is called a

Answers

Answer - A substance is matter that has a uniform and definite composition. All samples of substances, sometimes called pure substances, have identical properties.

Which statement refers to the quantum mechanical model? A) Electrons move in a circular path about the nucleus. B) Electrons can lose energy and fall into the nucleus. C) Electrons are in "orbitals", regions of space where there is high probability of being found. D) An electron can move from one circular path to another only when it absorbs or emits energy corresponding to the exact difference between the two energy states.

Answers

Answer:

Electrons are in "orbitals", regions of space where there is high probability of being found.

Explanation:

The Wave mechanical model of the atom does not restrict the electrons to certain energy levels only as in the Bohr's model, instead it describes a region around the nucleus called an orbital, where there is a high probability of finding an electron with a certain amount of energy.

Each energy level is composed of one or more orbitals and the distribution of electrons around the nucleus is determined by the number and kind of energy levels that are occupied.

A) accelerated upward. B) slowed and then stopped. C) moved at a constant velocity. D) increased its speed rapidly.

Answers

Answer:

A because the line is showing accelerated upward.

Explanation:

Complete the following calculation. Round off the answers to the correct
number of significant figures.
2.30 m x 3.65 m x 0.55 m
Plz help thank you!

Answers

Answer:

uhh can ya specify plezz

Explanation:

4.61725 is the answer just took a tiny quiz

2. How have fossils been preserved over millions of years?

Answers

Answer:A fossil is the remains or traces of a once-living plant or animal that was preserved in rock or other material before the beginning of recorded history. ... Fossils of single-celled organisms have been recovered from rocks as old as 3.5 billion years. Animal fossils first appear in rocks dating back about 1 billion years.

Explanation:

Five

Five types of fossils: (a) insect preserved in amber, (b) petrified wood (permineralization), (c) cast and mold of a clam shell, (d) pyritized ammonite, and (e) compression fossil of a fern.

2. Is it true thatOnly the stratosphere contains enough air for living things to breathe?

Answers

Answer:

I'm pretty sure that's false.

Explanation:

What is the significance of being able to "grow" organs?

Answers

Answer:

The significance of being able to "grow" organs is the potential to create new organs to replace the old and worn out ones or any that are missing. This can potentially save lives.

Explanation:

Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures?

Answers

Answer:

1.1m that what I got and it said it was right

The calculation of the given figure to one significant figure is[tex]1.1 m^{2}[/tex]

Significant figures can be regarded as a number of digits that is present in a particular value.Given 1.23 m

And 0.89 m

If we multiply we have

[tex]( 1.23*0.89) = 1.0947[/tex]

Since, there is no definite significant figure given, I will assume one significant figure.

To do this we start to count significant figures starting from first non-zero digit to the actual figure we are requested to stop.

We can see that 9 is after zero, the we round off that 9 then it will become 1 , Then the value to one significant figure is [tex]1.1m^{2}[/tex]

Therefore, the multiplication of the values to one significant figure is [tex]1.1^{2}[/tex]

Learn more at:https://brainly.com/question/13386983?referrer=searchResults

Which is the larger? 27 kilograms or 270 grams?

Answers

Answer: 27 killograms

Explanation: 1kg = 1000 grams

27 kilograms =27000 grams

When the internal energy of a material increases,: a) its temperature will rise b) it will go through a phase change c) A and B d) A or B

Answers

Answer:

a or b

Explanation:

Answer:

D. A or B

Explanation: The temperature of a substance cannot increase during phase change, so both A and B cannot happen simultaneously. And internal energy is the sum of the microscopic potential and kinetic energies of a substance, which increase with temperature and phase transition.

Audrey drove 50 miles in 2 hours. What was her average speed? 25 miles per hour 20 miles per hour 50 miles per hour 100 miles per hour

Answers

If Audrey drove 50 miles in 2 hours her average speed would be 25 miles per hour.

Answer:

25 miles per hour is the answer.

Explanation:

It is right because I just finished the test and got 100%

Isaac Newton believed that light was made of
O waves.
O particles.
O dust.
O gravity.

Answers

Explanation:

particles

Answer: particle

Explanation:

The light make small particle of wave

An electron is approximately 0.05% of the mass of a proton. Protons and neutrons each have a mass of 1 amu. Which of the following best describes the relationship between mass and subatomic particles?
A. The mass of an electron is equal to that of a neutron
B. Atomic mass is the total number of protons and electrons
C. A neutron has 0.05% more mass than an electron
D. The nucleus comprises over 99% of the atom's mass

Answers

Answer:

D. The nucleus comprises over 99% of the atom's mass.

Explanation:

Which of the following best describes the relationship between mass and subatomic particles?

A. The mass of an electron is equal to that of a neutron. FALSE. The mass of an electron is ≈1/1,840 of that of a neutron.

B. Atomic mass is the total number of protons and electrons. FALSE. Atomic mass is the total number of protons and neutrons.

C. A neutron has 0.05% more mass than an electron. FALSE. A neutron has 0.05% more mass than a proton.

D. The nucleus comprises over 99% of the atom's mass. TRUE. The nucleus comprises protons and neutrons.

Atoms of elements in the same group have the same number of . This is why they have similar chemical properties.

Answers

Answer:

Same number of electrons in their outer shell.

Explanation:

Whe working out their electronic configuration ( by looking at the atomic number) , one will find out that the number of electrons in their outer shell is also the same so the elements have to lose or gain the same amount of electrons to become stable.

Answer: its , valence electrons I just did it

Which of the following statements is true? A)If a hypothesis is proven false, a mistake has been made in the experiment.B) The independent variable is what changes as a result of the dependent variable. C) Changes in the independent variable cause changes in the dependent variable. D) Once a hypothesis is proven true, it becomes a theory and cannot be disproved. ANSWER ASAP

Answers

Answer:

Explanation:

once a hypothesis is proven true, it becomes a theory and cannot be disproved.

Im so glad i got help with this one because i got a hundred bc of someone.

What are the four categories commonly used to classify chemicals and chemical agents in the graphic communications industry

Answers

Answer:

Organic

Plate making

Ink mists

Gas, fumes and dust

Explanation:

the four categories commonly used to classify chemicals and chemical agents in the graphic communications industry are Organic ,Plate making ,Ink mists, Gas, fumes and dust.

Organic refer to those chemicals gotten from living matter and are natural.

Plate making refers to how plates are make and it carry image in the printing process.

Ink mist gotten from ink is use in graphic designs for painting and color indication.

A 42.0g sample of compound containing only C and H was analyzed. The results showed that the sample contained 36.0g of C and 6.0g of H.
Which of the following questions about the compound can be answered using the results of the analysis? (choose 1 option)
A) What was the volume of the sample?
B) What is the molar mass of the compound?
C) What is the chemical stability of the compound?
D) What is the empirical formula of the compound?

Answers

Answer:

D) what is the empirical.formular of the compond

Explanation:

this is because we have two elements and to calculate the empiral formula we need to have their masses which is also given

What role does DNA play in living organisms?

Answers

Answer: a nucleic acid that contains the genetic instructions for the development and function of living things

Explanation:

To practice for an Ironman competition, John rode his bike for 15 kilometers. How many
meters did he ride?

Answers

Answer:

15000

Explanation:

1000 Meters in a kilo meter. So multiply 15 by a 1000.

15. An electrically neutral atom consists of 15 neutrons, 13 electrons, and a number of protons. What is its mass number?

Answers

Answer:

Explanation:

it states that the atom is neutral, meaning the number of electrons and protons are the same. so if there are 13 electrons, there are 13 protons. And the mass number is neutrons plus protons. So 13+15 is 28

The charged subatomic particles in an atom are protons and electrons.

For an atom to be electrically neutral, the number of protons must be equal to the number of electrons to cancel out the charge exerted by the electrons.

Therefore, if the atom has 13 electrons, then the atom also has 13 protons. In other words, the atom has an atomic number of 13.

The mass number of an atom is the sum of the number if the atomic number or number of protons and the number of neutrons. Therefore, it’s mass number is 13+15=28.

The answer choices are
-solid
-liquid
-gas

Answers

Answer:

solid, gas

Explanation:

gasses are very low density because there is a low mass in a large volume with lots of space between atoms, solids on the other hand are very densely packed and there is very little room between atoms

solid and gas just took the quiz:)

PLEASE HELP !!! Read the passage below and use it to answer the question. Rainforests have four basic layers. The tallest trees are part of the emergent layer, which can be as much as 60 m above the ground. The sunlight is bright and hot here, and the wind can be strong. The main layer of the rainforest is the canopy, more than 20 m above the ground. It is made up of the leaves and branches of tree tops. The air here is still and very moist. The canopy blocks out most of the sunlight. Smaller trees, vines, and other plants make up the understory, which is less than 12 m above the ground. This layer is damp and warm with very little sunlight. The forest floor is dark, warm, and moist. Decomposers break up fallen leaves and other dead matter here. Which of the following graphs best presents one of the abiotic factors of a rainforest?

Answers

Answer:

Read the back of glossary

Explanation:

Read pages

Answer:

hi A

Explanation:

i need the points please

Does more data mean more reliable results or less

Answers

Answer:

more reliable. The more results the better results you get.

Explanation:

Answer:

more reliable results

Explanation:

hey there,

< More data is more reliable results as you can see even more about the experiment you are doing! If you only know one other scientist that had done the experiment and it worked for him, then that's not enough data, but if you have thousands of scientists that were able to do the experiment correctly, you will have a more reliable and correct result since now you have more data. >

Hope this helped! Feel free to ask anything else.

Find the molar mass of (NH4)2Cr2O7.

Answers

Answer: The molar mass of ammonium dichromate is 252.06 g/mol

Hope this helped :)

Choose all the answers that apply. What do all cells do? reproduce contain hereditary information have a nucleus break down food into energy have a cell membrane

Answers

Answer:

contain hereditary information

break down food into energy

Explanation:

Hereditary information is contained in genes and genes are found inside the cell. This implies that the cell contains hereditary information of organisms. This hereditary information is passed on during cell division from parent to daughter cells.

Metabolism occurs in the cells. The cells use oxygen to break down food materials to produce energy.

Which of the following is not a possible effect of increasing carbon dioxide levels in the atmosphere?a.increase in water contamination and floodsb.ocean acidificationc.cutting down forestsd.reduction of cold-related deaths Please select the best answer from the choices providedABCD

Answers

Answer:

Explanation:

The only option that is not an effect of increasing carbon dioxide levels in the atmosphere is cutting down forests.

An increasing level of carbon dioxide in the atmosphere causes ocean acidification due to the dissolution of the gas in the oceans. Carbon dioxide also causes global warming - an increase in the average global temperature due to the heat (from the sun) absorbing ability of the gas.

Global warming causes an increase in the level of seas and oceans as a result of the melting of glaciers and polar ice caps. The rise in sea levels causes flooding with associated loss of habitats and biodiversity.

The increase in global temperature also means that cold-related deaths will reduce.

Correct option: b

Answer:

C. cutting down forests

Explanation:

edge test

carry out this problem 2.4g/mlx15.82ml

Answers

Answer:

Explanation:

i dont really know

How do we observe in experiments?

Answers

Answer:

by watching and writing down the information that is provided

Explanation:

Other Questions

Neglecting air resistance, which of the following statements is true regarding an object in freefall?Lector inmersivo A. An objects acceleration increases at a constant rate. B. An object maintains a constant velocity. C. An object falls an equal distance in between each second. D. An objects velocity and acceleration both increase at a constant rate. E. An objects velocity changes at a constant rate, and its acceleration remains constant. A hot dog manufacturer wishes to minimize the cost in dollars of producing a low-cost niched product while meeting the dietary guidelines for protein and sodium. once the model has been run, the surplus variable in the sodium constraint has a value of 1300 milligrams. the best interpretation of this outcome is: Which of the following career fields identifies the specifics of a patient'sdisease?OtherapeuticO diagnosticO support servicesbiotechnologyO health informatics What was the main conflict that led to the French and Indian War? A.) competition over land B.) alliances with American Indians C.)new taxes on the colonists if B is the midpoint of AC, and AC=8x-20, find BC _____ is the bending of waves as they pass by a barrier or through an opening.A. InterferenceB. CoherenceC. DiffractionD. None of the above La chica ______________________ verduras en el mercado para la comida. How did government leaders select people to work in the government under the han dynasty in china? Point P is in the interior of OZQ. If mOZQ = 125 and mOZP = 62, what is mPZQ? What happened at the Battle of Yorktown?O A. General Washington's troops struggled to survive a cold winter.O B. General Washington's troops crossed the Delaware and surpriseda troop of Hessians.C. Prussian Baron Friedrich Von Steuben trained Washington'stroops.D. British general Cornwallis surrendered to General Washington. Which sentence is a logical inference that is supported by this evidence? Wolves are quite similar in appearance to domestic German shepherds. They have common physical traits that include shaggy fur, erect ears, and a heavy, curled tail. Problem #1 : Radioisotopes are used for a variety of medical purposes including as cancer treatments. Attaching an alpha emitter to an antibody allows for a targeted therapy which can be less damaging to healthy tissue than some other cancer treatments. One such alpha emitter is Astatine 211 (211At) which undergoes LaTeX: \alpha decay (hence the name, alpha emitter). 1.) What isotope is created by the LaTeX: \alpha decay of 211At? 2.) How many p+, n0, and e- does it have?Problem #2 : The grand dream of the protoscience called Alchemy was the transmutation of Lead (Pb) into Gold (Au). Thousands of years later, surely we can do better... after all, Platinum (Pt) is what everyone wants these days. We'll start with an isotope of lead, 209Pb which undergoes LaTeX: \beta - decay. In reality, that is the end of our tale. However, this is a thought exercise and we can do what we want. Using the different types of radioactive decay described above, but still starting with LaTeX: \beta - decay, how could we get 209Pb to Pt? 1.) What isotope is created by the LaTeX: \beta - decay of 209Pb?2.) Come up with a sequence of radioactive decay steps that would then lead to an isotope of Pt.3.) What isotope of Pt did you create? How many p+, n0, and e- does it have? What is the only part of an atom that cannot change (either protons, neutrons, or electrons)? Why has Tenochtitlan been describedas an "urban island"? plz help really. -4c - 9.6 + 5c = 0 An economic consequence of the material wealth returned to Europe due to colonization and exploration was What is the significance of the American Revolution to the American people and the world? Why was Jamestown founded by the English? O To spread Christianity to the new world To establish a colony where trade and economic expansion can occure To wage war with the French As a colony for religious freedom Which body system is responsible for making the chemicals that make men's voices deeper, and prompt women to have a cycle? A. Respiratory System B. Endocrine System C. Muscular System D. Lymphatic System A new car is purchased for 22400 dollars. The value of the car depreciates at 11% per year. To the nearest tenth of a year , how long will it be until the value of the car is 5000 dollars?