Answers
Answer:
See explanation.
Explanation:
1. There are 8 electrons. Elements that end with 2p orbitals are in the 2nd period (aka row) of the periodic table. Elements that have 4 electrons in 2p are in the 16th group (aka column) (column 16 may also be referred to as 6A) of the periodic table. So looking at row 2, column 16, we can see that the first diagram is of O, Oxygen.
2. 8 electrons. This is the same diagram as the one above.
3. 13 electrons. Elements ending with 3p are in period 3. Elements with 1 valence electron in a p orbital are in group 13 (aka group 3A).
4. 7 electrons. We already know 2p is period 2. 3 valence electrons in a p orbital means that it is in group 15/group 5A.
I did not write the answers for #3 and 4 but they can be easily found on a periodic table with the info I gave.
The elements given the above orbital diagrams are as follows:
Oxygen
Oxygen
Aluminum
Nitrogen
In first case,
There are total 8 electron and the electronic configuration is 1s2 2s2 2p4. The element which end up with 2p configuration belongs to 2nd period. It have four electron in their outermost shell so, it belongs to 16th group, So the element is Oxygen.
In the same way we will find the elements for rest of the cases.
Thus, we reach to the conclusion that the elements given the above orbital diagrams are as follows:
Oxygen
Oxygen
Aluminum
Nitrogen
learn more about stable electronic configuration here:
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Related Questions
can you help me with percent abundance??
Answers
Percent abundance is the percentage of all the different isotopes of an element and is used to calculate the average atomic mass. For example 99.98% of all Hydrogen in the universe is [tex]^1H[/tex] meaning hydrogen with 1 proton and 0 neutrons while the remaining 0.02% is [tex]^2H[/tex] meaning that [tex]^1H[/tex] is the most abundant by percent.
What are the benefits and dangers of the Iron element in our daily life?
Answers
The volume of a candy bar is 55cm^3. The mass of the candy bar is 70g. What is the density of the candy bar in g/cm^3
Answers
Answer:
1.3 g/cm3
Explanation:
What is the specific location water is in during each state of matter
Answers
Pls help solving question (d)!!
Answers
Answer: 1 C4H6O3 + 1 H2O -> 2 C2H4O2
Explanation:
LEFT HAND SIDE:
C= 4
H=8
O= 4
RIGHT HAND SIDE:
C= 2
H= 4
O= 2
You want the left side to be equal to the right side.
We can multiply each atomic element by 2, to get C4H8O4.
Can someone help me write chemical equations of what went wrong in the Chernobyl nucleur accident? Eg. graphite in the rods speeding up the reaction, graphite reacting with atomospheric oxygen to cause a second explosion, etc.
Answers
Answer:
It might be e=FCA
Explanation:
The missing components in the table to the right
are indicated with orange letters. Complete the
table by filling in the corresponding number(s) or
symbol(s) below.
A
B
1111
С
D
E
F
G
Answers
The Atomic Number (Z) indicates the number of protons in an atom of an element. If the atom is neutral then the number of protons will be equal to the number of electrons. So the atomic number can also indicate the number of electrons.
Mass Number (A) = Number of protons + Number of Neutrons
Atomic Number (Z) = Mass Number (A) - Number of Neutrons
Atomic number = number of protons = number of electrons ⇒ neutral atoms
Atomic number - positive charge = number of electrons ⇒ cation
Atomic number + negative charge = number of electrons ⇒ anion
You can also see the periodic system
A. Indium (In)
B. proton = electron = 27
C. proton = electron = 73
D. proton = electron = 49
E=F. atomic mass - neutron = 137 - 81 = 56
G. atomic mass-proton = 115- 49 = 66
H. 181-73 = 108
Answer:
I know I´m kinda late but....
Explanation:
A. In
B. 27
C. 73
D. 49
E. 56
F. 54
G. 66
H. 108
I. 32
How would an astronomer identify our home in the universe? Earth is in the solar system. The Milky Way is in the solar system. The solar system is next to the Milky Way. Earth is in the Milky Way and next to the solar system. The Milky Way is in the universe. The solar system is in the Milky Way. Earth is in the solar system. The universe is in the Milky Way. The Earth is in the Milky Way. Earth is at the center of the solar system.
Answers
Answer:
Earth is in the solar system.
Explanation:
Earth is our home and it is in the solar system.
Earth is the fifth-largest of the planets in the solar system and the third planet from the sun. Earth is the only planet having oxygen and water that supports life. Till now according to the research Earth is the only planet having life.
Planets are in the solar system, the solar system is in the milky way and the milky way is present in the universe. The astronomer identifies our home in the universe as "Earth is in the solar system" as Earth is our home.
Hence, the correct answer is "Earth is in the solar system."
Answer:
The Milky Way is in the universe. The solar system is in the Milky Way. Earth is in the solar system.
Explanation:
If the Milky Way Is in the universe and solar system you would know earth is also In the solar system, so "Our home planet is the third planet from the Sun, and the only place we know of so far that's inhabited by living things. While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface."
Please help brainiest is award!
Answers
Answer:
C
Explanation:
CH₄ is the formula for methane
How can changes in temperature cause movement of air and other fluids on Earth? , “information I found on the Internet”
Answers
Answer:
Winds are a result of the tendency of warm air to rise and, conversely, cool air to sink. ... Because the atmosphere constantly flows, like a fluid in a container, air rushes into such low pressure areas from cooler, high-pressure ones, and the movement of the air creates wind.
Answer question number 2
Answers
Answer:
it would be the second choice
why people on earth cannot see the entire shape of the milky way
Answers
Answer:
Explanation:
That is because the Milkyway is full of dust and gas, you cannot really see something if it has dust and gas
Answer:
Its too far away to see
Explanation:
You would probably have to be in space
If the diameter of the black marble is 3.0 cm, and by using the formula for volume, what is a good approximation of its volume? Record to the ones place
Answers
Answer:
V = 21.2 cm³
Explanation:
Given data:
Diameter of block = 3.0 cm
Volume of block = ?
Solution:
Formula:
V = 2πr³
First of all we will calculate the radius from diameter.
r = d/2
r = 3.0 cm/2
r = 1.5cm
V = 2(22/7) (1.5cm)³
V = 2(3.14) (3.375cm³)
V = 21.2 cm³
Arkeisha and Rodney are having a discussion about the correct use of the term "battery acid." Arkeisha insists that an alkaline battery does not have an actual acid contained within it, but Rodney disagrees and says that all batteries have acid in them. Which student is correct? A. Arkeisha is correct because the fluid in an alkaline battery has a pH between 0.0 and 6.9. B. Arkeisha is correct because the fluid in an alkaline battery has a pH between 7.1 and 14.0. C. Rodney is correct because the fluid in all batteries has a pH between 0.0 and 6.9, including alkaline batteries. D. Rodney is correct because the fluid in all batteries has a pH between 7.1 and 14.0, including alkaline batteries.
Answers
Batteries are filled with acidic fluid mostly of sulphuric acid. It have a pH about 0.8. Alkaline batteries are filled with potassium hydroxide or zinc chloride the pH is around 7 and the term battery acid cannot be used here. Thus option A is correct.
What is pH?pH of a solution is the measure of H+ ion concentration in the solution. It says how acidic or basic the solution is. If the solution has a pH of 7 it is neutral and if its less than 7 it is acidic and a pH of more than 7 is basic.
Battery is an electronic component which converts chemical energy to electrical energy. It consist of an electrolyte and two electrodes. Usually the fluid used in battery is sulphuric acid and it is called the battery acid.
Nowadays battery acids are replacing by alkaline fluids which are less hazardous than the acids. Most commonly potassium hydroxide, zinc chloride etc. are used as alkaline fluids.
The electrodes used in batteries are commonly zinc and magnesium. Thus, the pH of battery acid about 0.8 and option A is correct.
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If an animal is placed into a sealed container for a short time, the oxygen level will
A. decrease and the carbon dioxide level will increase.
B. decrease and the carbon dioxide level will decrease,
C, increase and the carbon dioxide level will increase.
D. decrease and the carbon dioxide level will stay the same.
E increase and the carbon dioxide level will decrease.
Answers
Answer:
A
Explanation:
Animals take in oxygen and convert it into carbon dioxide therefore the oxygen levels will decrease and the carbon dioxide levels will increase
If an animal is placed into a sealed container for a short time, the oxygen level will: decrease and the carbon dioxide level will increase.
What happens to oxygen level inside a container:The oxygen held inside the space is quickly being consumed by the freight or because of rusting inside a space, and that encased spaces must consistently be treated as perilous. And the carbon dioxide levels on the other hand will increase.
It will not take a long time for an animal to survive under these conditions.
Thus. option A is correct.
Find more information about Oxygen here:
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Elements found on the right side of the periodic table are considered ___________.
none of these
nonmetals
metalloids
metals
Answers
Answer:
nonmetals
Explanation:
What solution turns litmus paper red?
A. acidic
B. neutral
C. none
D. basic
Answers
Answer:
The answer is A please mark brainliest
Explanation:
what unit of measure would i use to measure the width of my fingernail A millimeters
B centimeters C meters D kilometers
E grams
Answers
Because the width of fingernails are very small and millimeters is the smallest unit of measurement listed.
Element X has two natural isotopes. The isotope with a mass of 10.012 amu (10X) has a relative abundance of 19.91%. The isotope with a mass of 11.009 ammu (11X) has a relative abundance of 80.09%. Calculate the atomic mass of this element.
Answers
Answer:
10.81
Explanation:
you can see the answer at the pic
4. What happens to the sun's rays as they radiate towards the earth?
Answers
Answer:
Most of the solar radiation is absorbed by the atmosphere and much of what reaches the earth's surface is radiated back into the atmosphere to become heat energy.
Explanation:
What is metamorphosis in the life cycle of a frog?
Answers
Answer:
Metamorphosis is the change in shape of a frog.
Explanation:
For example, it's like when the tadpole develops legs. That tadpole is going through metamorphosis to grow those legs.
25 POINTS
Boyd takes additional measurements of the mass of product formed in a reaction. He uses a balance that has smaller graduations than the first balance he used.
What is Boyd most likely trying to change?
Options:
He is trying to increase his accuracy but not his precision.
He is trying to increase his precision but not his accuracy.
He is trying to decrease his precision and increase his accuracy.
He is trying to increase his precision and decrease his accuracy.
Answers
Answer:
The correct option is A: "He is trying to increase his accuracy but not his precision"
Explanation:
Accuracy of measurement is when the value of the measurement is close to the actual value of that measurement while precision is when the experiment is repeated using the same instrument but obtaining different values.
When Boyd changed the weighing balance in his experiment to a smaller one, the smaller weighing balance has better accuracy (smaller graduations) than the initially used one because the smaller weighing balance will provide a value close to the actual value of the mass of the product. If he had, however, repeated the experiment without changing the weighing balance, he would have sought to increase his precision.
From the description above, it can be said that Boyd was trying to increase his accuracy but not his precision
Answer:
The correct option is A: "He is trying to increase his accuracy but not his precision"
Explanation:
right on EDGE 2021
Fill in the blanks: a substance that undergoes a ______ change will always result in something new that has ________ properties than what it started out as. A- physical and different. b- physical and same. C-chemical and different. D chemical and same
Answers
10 POINTS
Which tool can be used to measure the volume of a liquid to one decimal place?
Options:
a beaker
a graduated cylinder
an Erlenmeyer flask
a test tube
Answers
a graduated cylinder
what is the name of CCI3
carbon trichlorine????
Answers
Carbon tetrachloride, also known by many other names (such as tetrachloromethane, also recognised by the IUPAC, carbon tet in the cleaning industry, Halon-104 in firefighting, and Refrigerant-10 in HVACR) is an organic compound with the chemical formula CCl4.
What is the difference between Chemistry and Alchemy?
Answers
Answer:
The difference between alchemy and modern chemistry is alchemy is based on a mystic, supernatural view of reality, whereas chemistry assumes reality is basically natural.
Explanation:
hope this helps!
Which ice cream rather have Chocolate- Mint or Cookie IN' Cream?
Answers
Answer:
Cookies N Cream
Explanation:
Its The
What metal is Potassium (K)?
Answers
Explanation:
Potassium is a chemical element with the symbol K and atomic number 19. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure
Answer:
alkali metalExplanation:
Potassium is a chemical element with symbol K and atomic number 19. Classified as an alkali metalPlease Helpp
Which organelle is correctly matched with the cell process it performs?
A Vacuole — photosynthesis in plant leaf tissue
B Chloroplast — water storage in plant leaf tissue
C Mitochondria — energy production in plant and animal tissue
D Cell wall — supporting the cell in animal tissue
Answers
Answer:
Mitochondria - energy production in plant and animal tissue
Explanation:
The mitochondria is the power house of a cell. it contains adenosine-tri- phosphate or ATP molecules that produce energy through active transport. The mitochondria is responsible for energy production in both plant and animal cells
6. A sheet of metal is 2 cm wide, 10 cm tall, and 15 cm long. It was 4 grams. What is the
density?
Answers
Answer:
0.013g/cm^3
Explanation:
density= mass÷volume
Answer:
0.01(3) g/cm3 (cm3 means centimeter cubed, (3) means the 3 goes on forever)
Explanation:
The volume of the sheet is 300 cm3, and dividing 4 grams by 300 cm3 gets you 0.01(3) g/cm3. Hope it helps!