Atoms, Elements and the Periodic Table Review

Front

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

Back

Atom

Front

What are the three main subatomic particles found in an atom?

Back

Protons, Neutrons, Electrons

Front

Where are protons and neutrons located in an atom?

Back

In the nucleus.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Tags

NGSS.HS-PS2-4

Front

How many protons are in a hydrogen atom?

Back

1 proton.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the periodic table?

Back

A tabular arrangement of elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

How many elements are currently known in the periodic table?

Back

118 elements.