ATOMIC STRUCTURE Practice

Front

What is the chemical symbol for Fluorine?

Back

F

Front

What does the atomic number of an atom represent?

Back

The number of protons in its nucleus.

Front

What is the chemical symbol for Helium?

Back

He

Front

What is a neutron?

Back

A small particle in the nucleus of the atom, with no electrical charge.

Front

What is the chemical symbol for Mercury?

Back

Hg

Front

What is an atom?

Back

The basic unit of a chemical element.

Front

What are protons?

Back

Subatomic particles with a positive charge found in the nucleus of an atom.

Front

What are electrons?

Back

Subatomic particles with a negative charge that orbit the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The central part of an atom, containing protons and neutrons.

Front

What is the difference between protons and neutrons?

Back

Protons have a positive charge, while neutrons have no charge.