Atoms TEST 2024

Front

What element contains 26 protons?

Back

Iron

Front

What is the mass number?

Back

The mass number is the number of protons and neutrons in an atom.

Front

What does the number 1.00794 represent?

Back

The number 1.00794 represents the atomic mass of Hydrogen.

Front

What particle moves around the nucleus of an atom?

Back

Electron

Front

What are the three main particles that make up an atom?

Back

Protons, neutrons, and electrons.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (neutral).

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What is the nucleus of an atom?

Back

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