Atoms Quiz

What is the smallest unit of an element that retains the chemical properties of that element?

• molecule

• compound

• ion

• atom

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

• protons, neutrons, and positrons

• protons, neutrons, and electrons

• electrons, photons, and neutrinos

• protons, electrons, and quarks

What is the charge of a proton?

• -1

• +1

• 0

• +2

What is the charge of a neutron?

• 1

• 2

• 0

• -1

What is the atomic number of an element?

• The atomic number of an element is the number of protons in the nucleus of an atom.

• The atomic number of an element is the number of protons and neutrons in the nucleus of an atom.

• The atomic number of an element is the number of electrons in the nucleus of an atom.

• The atomic number of an element is the number of neutrons in the nucleus of an atom.

What is the atomic mass of an element?

• The atomic mass of an element is the total mass of all the atoms in a sample of that element.

• The atomic mass of an element is the number of protons in the nucleus of an atom of that element.

• The atomic mass of an element is the mass of the most common isotope of that element.

• The atomic mass of an element is the average mass of the atoms in a sample of that element.

What is the symbol for the element with atomic number 1?

• Oxygen

• Carbon

• Hydrogen

• Helium

What is the symbol for the element with atomic number 8?

• H

• C

• N

• O

Tiny particles that make up matter

• atoms

• ions

• molecules

Which subatomic particle has no charge?

• neutron

• proton

• electron