Neutral Atoms, Ions and Isotopes

If an atom has an extra neutron, it is a(n)

• Positive ion
• Negative ion
• Isotope
• Neutral Atom

If an atom gains an electron it is a(n)

• Cation

• Anion

• Isotope

• Neutral Atom

If an atom loses an electron it is a(n)

• Cation

• Anion

• Isotope

• Neutral Atom

Carbon-14 is an example of a(n)

• Positive ion
• Negative ion
• Isotope
• Neutral Atom

Ca+ is an example of a(n)

• Cation

• Anion

• Isotope

• Neutral Atom

An atom's atomic mass comes from its

• Nucleus
• Electron cloud
• Protons
• Electrons

Can an atom of Hydrogen have 2 protons?

• Yes, because it can be an ion
• No, because protons identify the atom
• Yes, because it can be an isotope
• No, because only neutral atoms exist

Can an atom of Helium have 3 electrons?

• Yes, because it can be an ion
• No, because protons identify the atom
• Yes, because it can be an isotope
• No, because only neutral atoms exist

A neutral atom of Lithium has 3 p+, 4 n, and 3 e-. The Lithium atom pictured is a....

• Positive ion
• Negative ion
• Isotope
• Neutral atom

If an atom has an equal number of protons and electrons it is a...

• Positive ion
• Negative ion
• Isotope
• Neutral atom