Nuclear Chemistry

Nuclear Chemistry

Assessment

Flashcard

Chemistry

10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What does the atomic number represent in a nuclear symbol?

Back

The atomic number represents the number of protons in the nucleus of an atom.

2.

FLASHCARD QUESTION

Front

What happens to the atomic number of an element after alpha decay?

Back

The atomic number decreases by 2.

3.

FLASHCARD QUESTION

Front

What is the mass number of an element?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

4.

FLASHCARD QUESTION

Front

What distinguishes isotopes of the same element?

Back

Isotopes of the same element differ in the number of neutrons.

5.

FLASHCARD QUESTION

Front

What are gamma rays?

Back

Gamma rays are high-energy photons emitted by radioactive substances.

6.

FLASHCARD QUESTION

Front

What is nuclear fission?

Back

Nuclear fission is a reaction in which the nucleus of an atom splits into smaller parts, releasing energy.

7.

FLASHCARD QUESTION

Front

What is nuclear fusion?

Back

Nuclear fusion is a process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

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