Quiz about Nuclear Decay Equations

Question 1

What are some possible product(s) of nuclear decay?

Accepted Answer

alpha particles

Accepted Answer

beta particles

Accepted Answer

gamma rays

Accepted Answer

daughter nuclie

Question 2

Uranium-238 decays into Thorium-234 by emitting ..........

Accepted Answer

an alpha particle

Answer

a beta particle

Answer

gamma rays

Answer

visible light

Question 3

Has the symbol

Accepted Answer

Alpha

Answer

Beta

Answer

Gamma

Question 4

Solve this equation for beta decay.
₆¹⁴C = ___ + _-1⁰e

Accepted Answer

714N

Answer

410Be

Answer

210He

Answer

613C

Question 5

Solve this equation for alpha decay.
₈₅²⁰⁹At = ___ + ₂⁴He

Accepted Answer

₈₃²⁰⁵Bi

Answer

₈₆²⁰⁹Rn

Answer

₈₁²⁰⁷Tl

Answer

₈₅²⁰⁸At

Question 6

What is likely to happen to unstable nuclei with too many, or too few, neutrons?

Accepted Answer

They will decay by emitting radiation.

Answer

They will loose all their electrons.

Answer

They will bond with other atoms.

Question 7

What is the change in the atomic number when an atom undergoes beta-minus decay?

Accepted Answer

Increases by 1

Answer

Decreases by 1

Answer

No change

Answer

Decreases by 2

Question 8

Beta radiation is ____________________

Accepted Answer

an electron from the nucleus.

Answer

an electron from an electron shell.

Answer

two protons and two neutrons.

Answer

a high frequency electromagnetic wave.

Question 9

Which type of nuclear radiation is being emitted here?

Accepted Answer

beta

Answer

Alpha

Answer

gamma

Answer

none

Question 10

What does the alpha decay of Radium-226 ( $$^{226}_{88}Ra$$ ) produce?

Accepted Answer

$$^{222}_{86}Rn$$

Answer

$$^{224}_{86}Rn$$

Answer

$$^{222}_{87}Fr$$

Answer

$$^{224}_{88}Ra$$

Question 11

Which of the following is a correct representation of alpha decay for Uranium-238?

Accepted Answer

$$^{238}_{92}U \rightarrow ^{234}_{90}Th + ^{4}_{2}He$$

Answer

$$^{238}_{92}U \rightarrow ^{239}_{92}U + ^{0}_{-1}e$$

Answer

$$^{238}_{92}U \rightarrow ^{234}_{91}Pa + ^{4}_{2}He$$

Answer

$$^{238}_{92}U \rightarrow ^{238}_{91}Pa + ^{0}_{1}e$$

Question 12

What is the change in mass number when an atom undergoes alpha decay?

Accepted Answer

Decreases by 4

Answer

Increases by 4

Answer

Decreases by 2

Answer

No change

Question 13

Which particle is emitted during beta-plus decay?

Accepted Answer

Positron

Answer

Electron

Answer

Neutron

Answer

Proton

Question 14

In a nuclear decay equation, what does the term 'daughter nucleus' refer to?

Accepted Answer

The nucleus formed after decay

Answer

The original unstable nucleus

Answer

A nucleus that absorbs radiation

Answer

A nucleus that splits into two

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