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Understanding Atoms and Molecules

Understanding Atoms and Molecules

Assessment

Interactive Video

Chemistry

6th - 8th Grade

Hard

Created by

Evelyn Hayes

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the smallest unit of matter that retains the properties of an element?

Atom

Molecule

Electron

Proton

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which subatomic particle is negatively charged and orbits the nucleus?

Photon

Electron

Neutron

Proton

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of neutrons in an atom?

They attract electrons

They add to the atom's charge

They orbit the nucleus

They add to the atom's weight

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many electrons can the L shell hold?

2

8

32

18

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the outermost shell of an atom called?

Electron cloud

Core shell

Valence shell

Nucleus

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a molecule?

A single atom

An electron orbit

A type of subatomic particle

A group of atoms bonded together

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the atomicity of a water molecule (H2O)?

Triatomic

Diatomic

Polyatomic

Monatomic

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