How can you determine the number of neutrons in an atom if you know its atomic number and mass number?

Subtract the atomic number from the mass number

Add the atomic number to the mass number

Multiply the atomic number by the mass number

Divide the mass number by the atomic number

What does the atomic number of an element represent?

The number of protons in the nucleus

The number of neutrons in the nucleus

The total number of protons and neutrons in the nucleus

The total number of protons and electrons in an atom

What is the main difference between the mass number and the atomic number of an atom?

The mass number includes the number of protons and neutrons, while the atomic number is just the number of protons.

The mass number includes the number of protons and electrons, while the atomic number includes protons and neutrons.

The atomic number includes the number of protons and electrons, while the mass number includes protons and neutrons.

There is no difference; they are the same.

STAAR Science Review - Texas

Quiz

•

Science

•

8th Grade

•

Practice Problem

•

Easy

•

NGSS

MS-ESS1-1, MS-PS1-1, MS-ESS2-5

+22

Standards-aligned

Marcy Reneau

Used 15+ times

FREE Resource

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name of group 18 on the periodic table

noble gases

alkali metals

alkaline earth metals

halogens

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Center of atom

nucleus

atom

valence electrons

electron cloud

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