Exploring Half-Life and Carbon Dating in Nuclear Chemistry

Exploring Half-Life and Carbon Dating in Nuclear Chemistry

Assessment

Interactive Video

Chemistry

6th - 10th Grade

Easy

Created by

Aiden Montgomery

Used 8+ times

FREE Resource

The video explores the concept of radioactive decay, focusing on isotopes and the probabilistic nature of decay. It introduces the concept of half-life, using carbon-14 as an example, and explains how isotopes decay into other elements over time. The video also covers the calculation of half-life and the randomness involved in the decay process.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the atomic number of an atom during beta decay?

It doubles.

It decreases by one.

It increases by one.

It remains the same.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms are there in one mole of carbon-12?

6.02 x 10^22

6.02 x 10^23

6.02 x 10^25

6.02 x 10^24

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the half-life of carbon-14?

5,740 years

1,000 years

100 years

10,000 years

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used to describe the time it takes for half of a radioactive sample to decay?

Half-life

Radioactive period

Decay time

Decay constant

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After one half-life, what fraction of the original carbon-14 atoms remains?

1/4

1/2

1/16

1/8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you start with 10 grams of carbon-14, how much will remain after two half-lives?

1.25 grams

5 grams

2.5 grams

7.5 grams

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the probability that a single carbon-14 atom will decay after one half-life?

50%

25%

100%

75%

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