Unit 4 Test Review - Atoms (Choice Board)

Front

What is the basic unit of matter?

Back

Atoms are the basic unit of matter, making up all substances.

Front

How are elements arranged in the modern periodic table?

Back

Elements are arranged by atomic number.

Front

What particles are found in the nucleus of an atom?

Back

The nucleus of an atom contains protons and neutrons.

Front

What are the positive particles of an atom called?

Back

Protons are the positive particles of an atom.

Front

How many protons does an atom with atomic number 6 have?

Back

An atom with atomic number 6 has 6 protons.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the charge of a proton?

Back

Protons have a positive charge.

Front

What is the charge of a neutron?

Back

Neutrons have no charge (neutral).

Front

What is the atomic mass of an element?

Back

The atomic mass is the weighted average mass of an element's isotopes.

Front

What is an isotope?

Back

Isotopes are atoms of the same element with different numbers of neutrons.