Atom and Matter review

The basic building blocks of all matter?

• atoms

• matter

• solid

• mass

What is the nucleus of an atom?

• The neutral charged particle.

• The rings of the atom that allow the electrons to travel quickly.

• The center of an atom.

What are the subatomic particles found in an atom?

• nucleus

• protons

• neutrons

• electrons

What is the simplest / pure substance that is made up of only one kind of atom called?

• compounds

• mixtures

• elements

Which particle has a positive charge in an atom?

• protons

• neutrons

• electrons

Which particle has a negative charge in an atom?

• proton

• neutron

• electron

Which particle has a neutral / no charge in an atom?

• proton

• neutron

• electron

Which particles within an atom are in the nucleus?

• protons

• neutrons

• electrons

The element's atomic number identifies

• the number of neutrons in the atom.

• the number of protons in the atom.

The number of protons in an atom must equal the number of

• the number of electrons.

• the number of neutrons.