Atomic Quiz

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Variable

Which subatomic particle is directly involved in chemical reactions?

• Proton

• Neutron

• Electron

• Nucleon

What is the atomic number of an element?

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The total number of protons and neutrons in the nucleus

• The total number of electrons orbiting the nucleus

Isotopes of an element have the same number of __________ but different numbers of __________.

• Electrons, protons

• Neutrons, electrons

• Protons, neutrons

• Electrons, neutrons

What is an ion?

• An atom that has lost or gained neutrons

• An atom that has lost or gained protons

• An atom that has lost or gained electrons

• An atom with an equal number of protons and electrons

Which of the following is true about the mass number of an atom?

• It is equal to the number of protons

• It is equal to the number of electrons

• It is the sum of the number of protons and neutrons

• It is the sum of the number of protons and electrons

An ion with a positive charge is known as a(n):

• Anion

• Cation

• Neutron

• Electron

What determines the chemical properties of an atom?

• The number of neutrons

• The number of protons

• The number of electrons in the outer shell

• The total mass of the atom

If an atom has 17 protons and 18 neutrons, what is its atomic number?

• 17

• 18

• 35

• 1

Which of the following statements about isotopes is true?

• Isotopes have different numbers of protons

• Isotopes have different atomic numbers

• Isotopes of an element have identical chemical properties

• All isotopes are radioactive