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Half Life Decay

Authored by Lisa Thompson

Science

10th Grade

NGSS covered

Half Life Decay
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why is carbon-14 useful in dating archaeological artifacts?

It has a very short half-life, making it precise for dating recent artifacts.

It is found in atmospheric carbon dioxide and is absorbed by living organisms.

It is the most stable isotope of carbon.

It has a very long half-life, making it useful for dating ancient artifacts.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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

They will decay by emitting radiation.

They will loose all their electrons.

They will bond with other atoms.

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Radioactive materials have unstable...

electrons

protons

nuclei

neutrons

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What makes something radioactive?

elements with an atomic number above 81

an unstable nucleus

contaminated sewage

It decays over time

Tags

NGSS.HS-PS1-8

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The Radioactive decay is completely

Spontaneous

Programed

Controlled

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The diagram shows 32 atoms

32 of the Red are the parent isotope

0 of the atoms are daughter isotopes

How many half-lives have occurred?

0

1

2

3

Tags

NGSS.HS-PS1-8

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The diagram shows 32 atoms.

16 of the Red are parent isotopes

16 of the Green are daughter isotopes

How many half-lives have occurred?

0

1

2

3

Tags

NGSS.HS-PS1-8

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