Ions & Isotopes Review

Carbon-12 and Carbon-14 are

• Ions

• Isotopes

• Cations

• Anions

If aluminum loses 3 electrons, what will the charge be?

• +

• -

• +3

• -3

An atom with 3 protons, 2 electrons, and 4 neutrons will be:

• Lithium-7 with a -1 charge

• Lithium-5 with no charge

• Lithium-5 with a +1 charge

• Lithium-7 with a +1 charge

How many neutrons does Thorium-182 have?

• 92

• 90

• 182

• 129

An ion is:

• An atom that has gained or lost electrons

• An atom that has gained or lost neutrons

• An atom that has gained or lost protons

• An atom that is neutrally charged

An isotope is:

• An atom that has gained or lost electrons

• An atom that has gained or lost neutrons

• An atom that has gained or lost protons

• An atom that is neutrally charged

How many neutrons are in the given atom?

• 92

• 143

• 235

• 327

What is the mass number of bromine?

• 35

• 45

• 80

• 79.904

How many electrons does this magnesium ion have?

• 24

• 12

• 10

• 14

If an atom has more electrons than protons, it is a(n)

• Positive ion
• Negative ion
• Isotope
• Neutral atom