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Chemistry — Grade 8 Quiz Questions

A sample of the 10 questions below — instant scoring and an explanation for every answer. No sign-in required to play.

Question 1

The smallest unit of an element that retains its chemical properties is a(n) ___.

Aatom
Bmolecule
Ccompound
Dion

Question 2

The center of an atom, containing protons and neutrons, is called the ___.

Aelectron cloud
Bnucleus
Cshell
Dorbital

Question 3

In the periodic table, elements in the same vertical column are called a ___.

Aperiod
Bseries
Cgroup (family)
Dblock

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