Answers2001310 Earth Science Sem 1 - ReevesTypes of Radioactive Decay

Types of Radioactive Decay Answers

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1
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Which of these statements are the same for both nuclear reactions and chemical reactions? Check all that apply.

A
Both can be represented by balanced equations.
B
Both involve changes to electron arrangements in atoms.
C
Both involve a change in energy.
D
Both result in a change in the identities of elements.
2
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Chemical reactionsNuclear reactionsBoth chemical reactions and nuclear reactions involve only a rearrangement of electrons, and do not involve changes in protons or neutrons.

A
Chemical reactions
B
Nuclear reactions
C
Both chemical reactions and nuclear reactions
3

In chemical reactionsnuclear reactionsboth chemical reactions and nuclear reactions, a large amount of energy is released or absorbed.

A
chemical reactions
B
nuclear reactions
C
both chemical reactions and nuclear reactions
4

New elements can be formed as a result of chemical reactionsnuclear reactionsboth chemical reactions and nuclear reactions.

A
chemical reactions
B
nuclear reactions
C
both chemical reactions and nuclear reactions
5

Exothermic and endothermic reactions can occur during chemical reactionsnuclear reactionsboth chemical reactions and nuclear reactions.

A
chemical reactions
B
nuclear reactions
C
both chemical reactions and nuclear reactions
6

Which statement describes the differences between nuclear reactions and chemical reactions?

A
Nuclear reactions involve changes to electrons, while chemical reactions involve changes to protons and neutrons.
B
Only chemical reactions can be exothermic.
C
Chemical reactions can result in new compounds, while nuclear reactions can result in new elements.
7

Why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? Check all that apply.

A
Chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.
B
Chemical reactions involve changes to protons and neutrons in an atom; isotopes do not differ in protons or neutrons, and so they react the same way during chemical changes.
C
Nuclear reactions involve changes to protons and neutrons in an atom; isotopes differ in neutrons, and so they react differently to these changes.
D
Nuclear reactions involve changes to electrons in an atom; isotopes differ in electrons, and so they react differently to these changes.
8

Use the drop-down menus to complete each of the sentences.Isotopes behave similarly in chemical reactionsnuclear reactionsboth chemical reactions and nuclear reactions.

A
chemical reactions
B
nuclear reactions
C
both chemical reactions and nuclear reactions
9

Use the drop-down menus to answer the questions.Which type of radioactive decay produces particles with a positive charge and very small mass? alphabetagamma

A
alpha
B
beta
C
gamma
10

Which type of radioactive decay produces radiation that requires lead shielding? alphabetagamma

A
alpha
B
beta
C
gamma
11

Which type of radioactive decay produces radiation with zero mass? alphabetagamma

A
alpha
B
beta
C
gamma

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