Match the terms below to the correct definitions
3. Atom
1. The mass on the periodic table.
b. Electrons
2. Region surrounding the nucleus where electrons are found.
C. Protons
3. Positively charged center of an atom.
d. Neutrons
4. Particles that differ in number between isotopes.
e. Electron
cloud
5. Vertical column in the periodic table.
1. Nucleus
6. Positively charged particles in an atom.
R. Quark
7. Negatively charged particles in the outermost energy levels of the electron cloud.
8. Table that organizes the elements by properties.
9. Atoms of the same element that have different masses.
h. Atomic
number
1. Mass number
10. Smallest known particle that makes up protons and neutrons.
j. Average
atomic mass
11. All elements in the same one of these has the same number of energy levels in
their electron cloud.
k. Isotopes
12. The smallest form of matter that still retains the properties of an element.
1. Valence
electrons
13. Negatively charged particles in an atom.
m. Group
14. The sum of protons and neutrons in an atom.
n. Period
15. Represents the identity of an element.
o. Periodic
Table

Answer:

number 3

Explanation:

Explanation:

it's the third graph

values are put directly without scaling

Answer:

a) 0.000765kg

b) 1340mg

c) 0.0342g

Explanation:

a) 1000g = 1kg

0.765g= 0.765/ 1000

= 0.000765g

b) 1g = 1000mg

1.34g = 1.34 × 1000

= 1340mg

c) 1000mg = 1g

34.2mg = 34.2/1000

= 0.0342g

Answer:

Sugar is made up of carbon, hydrogen and oxygen atoms. It's the way these atoms are connected that makes each type of carbohydrate different. In each molecule of table sugar there are: 12 carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms.

Explanation:

Answer:

To encourage readers to vary the design

Explanation:

Answer:

Chromosomes line up randomly and cross genetic information between unpaired chromosomes.

Explanation:

Answer:

d.

Explanation:i took the quiz on edge 2020

Answer: Its B/Climate

Im pretty sure if its wrong srry!

Hope this helped!

Explanation:

Apart from different ways to classify soils. The one factor that scientists use to classify orders of soil is climate. Hence, Option (B) is correct

Climate is the long-term pattern of weather in a particular area.

Weather can change from hour-to-hour, day-to-day, month-to-month or even year-to-year.

A region's weather patterns, usually tracked for at least 30 years, are considered its climate.

Other factors people uses in classifying orders of soil are;

Soil orders are known as the single dominant attributes affecting soils in any location.

They can be the prevalent vegetation such as Alfisols and Mollisols or the type of parent material such as Andisols and Vertisols or the climate variables such as lack of precipitation etc.

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The reaction equation is the chemical formula of reagents and product substances  

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products  

Mol ratio :

Pbs : O₂ : PbO : SO₂ = 2 : 3 : 2 : 2

mol PbO

[tex]\tt \dfrac{2}{2}\times 2.4=2.4[/tex]

mol SO₂

[tex]\tt \dfrac{2}{2}\times 2.4=2.4[/tex]

mol PbO

[tex]\tt \dfrac{2}{3}\times 2.4=1.6[/tex]

mol SO₂

[tex]\tt \dfrac{2}{3}\times 2.4=1.6[/tex]

(c) 5.3 mol PbS

mol PbO

[tex]\tt \dfrac{2}{2}\times 5.3=5.3[/tex]

mol SO₂

[tex]\tt \dfrac{2}{2}\times 5.3=5.3[/tex]

mol PbO

[tex]\tt \dfrac{2}{3}\times 5.3=3.53[/tex]

mol SO₂

[tex]\tt \dfrac{2}{3}\times 5.3=3.53[/tex]

Answer:

He is awkward and absentminded.

Explanation:

"The Secret Life of Walter Mitty" by James Thurber presets the story of Walter with a dream. The beginning of the story reflects on the idea that the story is more inclined towards the dreams and fantasy-full world rater than reality. Walter's dreams are a mixture of reality and his imagination. He spoke certain words those do not have meaning in reality. He calls himself 'Puppy Biscuit" to which the women reacted with a laugh. This represented his absent-minded character and his appeal towards is dreams.

Answer:sodium

Explanation: because its not hard to look on the PERIODIC TABLE

Answer:

The answer is 3and 5/9 multiplied by 20 which is about one hour and  14 ,inutes

Explanation:

Answer:

Physical changes only change the appearance of a substance, not

chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Explanation:

Answer:

This shoes the soda lime defusing to limewater turning into germinating seeding which defuses back to limewater

Explanation:

Answer:

bec12 is it.one or i it is under 180

The IUPAC name for NO is nitric oxide. The correct option is A.

The International Union of Pure and Applied Chemistry (IUPAC) is a global organization that represents chemistry as well as related sciences and technologies.

The chemical compound's identity is represented by its common and IUPAC names, which differ from one another. Every chemical compound has multiple names.

Complete the following step-by-step response: The IUPAC nomenclature is a standardized name given to organic compounds in accordance with official naming rules.

Nitric oxide, also known as NO, is a colorless gas. It is one of the most important nitrogen oxides.

Nitric oxide is a free radical, which means it has an unpaired electron, which is sometimes represented in its chemical formula by a dot.

Thus, the correct option is A.

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Answer:

D: Nitrogen Monoxide

Explanation:

There's one Nitrogen atom and one Oxygen atom

Answer:

chemical change

Explanation:

A physical change is one that makes changes to the physical properties of matter. In many cases, the difference is usually reversible. Examples include boiling, melting, freezing, the magnetization of metals, etc.

A chemical change is one in which a new kind of matter is formed. It is usually accompanied by energy changes, i.e., the evolution or absorption of energy in the form of heat or light. This process is not easily reversible. Examples include; combustion, rusting of iron, precipitation, the souring of milk, etc.

From the question given, the combination of two clear liquid in a beaker which results to formation of bubbles and changes in coloration of the solution is a chemical change.

Answer:

At the equator, the altitude is lower, and also because of the direct heating of sun rays on the surface, the temperature is much higher than at the poles. This makes the air near the surface hot and lighter and hence it rises up which results in lower air pressure.

Explanation:

Plz give me brainliest .-.

Answer:

These nuclei with different numbers of neurons are called isotopes

Answer:

neutrons' main function is to attract each other and keep the nucleus of an atom intact. a nucleus will become unstable if there are too many or too few neutrons in it.

Explanation:

too many= it will undergo beta decay (the neutrons will changes into proton)

too few= there will be an imbalance between forces which leads to nuclear imbalance

Answer:

the answer is a linear

Explanation:

heres a graph different ones at this link

Answer:

[tex]E=4.5\times 10^{-18}\ J[/tex]

Explanation:

It is given that, the frequency of Ultraviolet radiation is [tex]6.8\times 10^{15}\ Hz[/tex]

We need to find the energy of the photon. The formula for the energy of a photon is given by :

[tex]E=hf\\\\\text{Where h is Planck's constant}\\\\E=6.63\times 10^{-34}\times 6.8\times 10^{15}\\\\E=4.5\times 10^{-18}\ J[/tex]

So, the energy of the photon is [tex]4.5\times 10^{-18}\ J[/tex].

Answer: The United States gets 81% of its total energy from oil, coal, and natural gas, all of which are fossil fuels. We depend on those fuels to heat our homes, run our vehicles, power industry and manufacturing, and provide us with electricity.

Explanation:

....

Answer:

They give us things that we couldnt get anywhere else and arent harmful to the enviornment

Explanation:

Answer:

Yes the air particles have mass

Explanation:

Air is mater: it has weight and occupies space. For it to have weight, it has to have a mass. The mass would however be determined by how much volume of air is trapped in the container, but nevertheless, the mass of the air can be obtained.

We also notice that if the container is "popped", the mass of air escapes through one way by the weight exerted on it.

I hope this was helpful.

Answer:

Yes the air particles have mass

Explanation:

You can tell that if the container is pooped open the mass of air escapes

Answer:

u

Explanation:

Answer:

Yes as you can improve The invisible to human eye force or physical force if any being applied to a object of any mass and with all individual forces as they are acting on this object

Explanation:

Answer:

answer questions brain

Answer:

it is B

Explanation:

Answer: B microwaves

Explanation: oatmeal cookies, and the independednt variable is the kind of cookie

An atom is said to be electrically neutral if it has an equal amount of protons and electrons. On the other hand, an atom is electrically charged if its protons and electrons are not distributed evenly.

Neutral atoms are defined as when an atom has an equal amount of protons and electrons, it also has an equal number of electric charges, both positive and negative. As a result, every element in the periodic table has a neutral atomic structure.

Normal atoms have an equal amount of positive and negative particles and a neutral charge. Accordingly, an atom with a neutral charge is one in which the atomic number is matched by the number of electrons.

Thus, an atom is said to be electrically neutral if it has an equal amount of protons and electrons. On the other hand, an atom is electrically charged if its protons and electrons are not distributed evenly.

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Answer:

dont question the world kid

Explanation: