Radioactivity

Radioactivity

Assessment

Flashcard

Chemistry

11th Grade

Practice Problem

Hard

Created by

Wayground Content

Used 1+ times

FREE Resource

Student preview

quiz-placeholder

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is radioactivity?

Back

Radioactivity is the process by which unstable atomic nuclei lose energy by emitting radiation. This can occur in the form of alpha particles, beta particles, or gamma rays.

2.

FLASHCARD QUESTION

Front

What is a mass number?

Back

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

3.

FLASHCARD QUESTION

Front

How do you calculate the number of neutrons in an atom?

Back

Number of neutrons = Mass number - Atomic number.

4.

FLASHCARD QUESTION

Front

What are alpha particles?

Back

Alpha particles are positively charged particles consisting of two protons and two neutrons, emitted during radioactive decay.

5.

FLASHCARD QUESTION

Front

What are beta particles?

Back

Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei.

6.

FLASHCARD QUESTION

Front

What are gamma rays?

Back

Gamma rays are high-energy electromagnetic radiation emitted from a nucleus during radioactive decay, with no mass or charge.

7.

FLASHCARD QUESTION

Front

What happens to the atomic number during alpha decay?

Back

During alpha decay, the atomic number decreases by 2.

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?