STEM Chem U1L4 Problem Set

Neutral atoms are atoms that have

• same # of protons and neutrons

• same # of protons and electrons

• same # of neutrons and electrons

• Different # of protons, neutrons, and electrons

These two subatomic particles are responsible for an atom's charge:

• protons and neutrons

• protons and electrons

• Electrons and Quarks

• Photons and Positrons

Ions are atoms that have

• Different # of protons and electrons

• Same number of protons and electrons.

• Different numbers of protons and neutrons.

• Ions are elements that have different numbers of neutrons and electrons.

Atoms with different # of protons and electrons are called

• isotopes

• isomers

• ions

• elements

Negative ions are also called

• Cations

• Anions

• Proteons

• Neutral atoms

Positive ions are also called

• Cations

• Anions

• Proteons

• Neutral atoms

Negative ions are atoms that have

• more electrons than protons

• more protons than electrons

• more neutrons than electrons

Positive ions are atoms that have

• more electrons than protons

• more protons than electrons

• more neutrons than electrons

An atom has 8 protons and 10 electrons. What charge will this atom have?

• -2

• +2

• 0 (no charge)

An atom has 1 proton and 1 electron. What charge will this atom have?

• -1

• +1

• 0 (no charge)