Understanding Subatomic Particles

What happens when you change the number of protons in an atom?

• The atom becomes an ion.

• The atom's mass changes.

• The atom becomes unstable.

• The atom changes its element identity.

Which subatomic particle acts as a buffer between protons in the nucleus?

• Photon

• Proton

• Neutron

• Electron

How does changing the number of neutrons affect an atom?

• It changes the atom's charge.

• It makes the atom radioactive.

• It changes the atom's element.

• It changes the atom's mass, creating an isotope.

What is the primary role of electrons in an atom?

• To determine the atom's mass.

• To buffer protons in the nucleus.

• To determine the atom's chemical reactivity.

• To change the atom's element identity.

What results from adding or removing electrons from an atom?

• The atom becomes radioactive.

• The atom's mass changes.

• The atom becomes a different element.

• The atom becomes an ion with a charge.