Elements Quiz

What is the smallest unit of an element called?

• atom

• cell

• molecule

• compound

What is the basic building block of matter?

• element

• cell

• molecule

• atom

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

• protons, neutrons, and positrons

• protons, neutrons, and electrons

• protons, electrons, and photons

• protons, neutrons, and quarks

Which subatomic particle has a positive charge?

• photon

• electron

• neutron

• proton

Which subatomic particle has a negative charge?

• proton

• neutron

• positron

• electron

Which subatomic particle has no charge?

• proton

• photon

• electron

• neutron

What is the atomic number of an element?

What does the atomic number represent?

• The atomic number represents the number of protons in an atom's nucleus.

• The atomic number represents the mass of an atom's nucleus.

• The atomic number represents the number of electrons in an atom's nucleus.

• The atomic number represents the number of neutrons in an atom's nucleus.

What is the symbol for the element Hydrogen?

• H

• He

• C

• O

What is the symbol for the element Oxygen?

• O

• N

• C

• H