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Sergeeva-Olga [200]
3 years ago
6

Sometimes a particle of radiation penetrates a substance and continues on its way, and sometimes it doesn't. For the particles t

hat don't make it through a substance, what happened to them? At the atomic level what part of an atom did they hit? As for the particles that weren't shielded or blocked by the material, how did they manage to get through? Also, explain why denser substances shield better than lighter substances.
Chemistry
1 answer:
Amanda [17]3 years ago
6 0

Explanation:

According to the atomic model of Rutherford, an atom has most of empty space inside the region where electrons reside.

And, nucleus is the smaller part that is, present at the center of an atom. It is solid and inside the nucleus there are  protons and neutrons are present.

  • When radiation hits a solid particle then they hit the positively charged nucleus due to the positive charge of protons. So, they tend to face a strong repulsion and then they retrace the path. As a result, they make it through the substance.
  • Now, at the atomic level they hit the nucleus of the atom that s, positively charged.
  • Particles that are not shielded or blocked by material tend to pass directly through the large empty space as in this empty space there is no repulsion because of nucleus. As a result, they tend to pass directly through the material without any disturbance.
  • Denser is a substance, larger will be its nucleus. This means that then there will be more number of protons and neutrons inside the nucleus.  Hence, there will be high positive charge on the nucleus and very less free space that will allow very less number of radiations to pass through without any disturbance.

Thus, denser substance will shield better as compared to the lighter substances.

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Be sure to answer all parts.
Fudgin [204]

Answer:

2H₂ + O₂       →     2H₂O

Explanation:

Chemical equation:

H₂ + O₂       →     H₂O

Balance chemical equation:

2H₂ + O₂       →     2H₂O

Step 1:

H₂ + O₂       →     H₂O

Left hand side                     Right hand side

H = 2                                    H = 2

O = 2                                    O = 1

Step 2:

H₂ + O₂       →     2H₂O

Left hand side                     Right hand side

H = 2                                    H = 4

O = 2                                    O = 2

Step 3:

2H₂ + O₂       →     2H₂O

Left hand side                     Right hand side

H = 4                                    H = 4

O = 2                                    O = 2

7 0
3 years ago
If the particles of matter that make up a substance are relatively far apart and can move freely, the substance is in what state
Novay_Z [31]

Answer:

Gaseous

Explanation:

Gasses can move freely and do not form the shape of their containers

Liquids are more free than solids, but they conform to the shape of their container

Solids are not free

5 0
3 years ago
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Answer:

b is the answer 1000ml

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DIA [1.3K]

Answer:

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Explanation:

Identify one disadvantage to each of the following models of electron configuration:

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8. b
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