Atomic Number and Atomic Mass

Atomic Number and Atomic Mass

Assessment

Flashcard

Science

7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the mass number defined as?

Back

The mass number is defined as the number of protons and neutrons in an atom.

2.

FLASHCARD QUESTION

Front

Which particle has a positive charge?

Back

The proton has a positive charge.

3.

FLASHCARD QUESTION

Front

What is the atomic number of an atom?

Back

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

4.

FLASHCARD QUESTION

Front

Which subatomic particle has a negative charge?

Back

The electron has a negative charge.

5.

FLASHCARD QUESTION

Front

What is the relationship between atomic number and element identity?

Back

The atomic number determines the identity of an element; each element has a unique atomic number.

6.

FLASHCARD QUESTION

Front

What is the atomic mass unit (amu)?

Back

The atomic mass unit (amu) is a standard unit of mass that quantifies mass on an atomic or molecular scale.

7.

FLASHCARD QUESTION

Front

How do you calculate the mass number of an atom?

Back

The mass number is calculated by adding the number of protons and neutrons in the nucleus.

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