The Nucleus

Question 1

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

Revolt · Accepted Answer

Both can be represented by balanced equations.; Both involve a change in energy.

Question 2

In , a large amount of energy is released or absorbed.

Revolt · Accepted Answer

nuclear reactions

Question 3

New elements can be formed as a result of .

Revolt · Accepted Answer

nuclear reactions

Question 4

Exothermic and endothermic reactions can occur during .

Revolt · Accepted Answer

both chemical reactions and nuclear reactions

Question 5

Which type of radioactive decay produces particles with the most mass?

Revolt · Accepted Answer

alpha

Question 6

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

Revolt · Accepted Answer

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.; Nuclear reactions involve changes to protons and neutrons in an atom; isotopes differ in neutrons, and so they react differently to these changes.

Question 7

Use the drop-down menus to complete each of the sentences.Isotopes behave similarly in .

Revolt · Accepted Answer

chemical reactions

Question 8

involve only a rearrangement of electrons, and do not involve changes in protons or neutrons.

Revolt · Accepted Answer

Chemical reactions

Question 9

Which would result in radioactive decay? Check all that apply.

Revolt · Accepted Answer

a neutron-to-proton ratio of 1:2 in a large nucleus; a nucleus that contains 90 protons and 100 neutrons; any isotope of the element uranium, which has atomic number 92

Question 10

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

Revolt · Accepted Answer

beta

The Nucleus Answers

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