An atom that has gained or lost electrons is called ...

• a polyatomic ion

• an isotope

• an ion

• a neutral atom

Atoms that lose electrons become...

• anions

• cations

• neutral atoms

• polyatomic ions

If an aluminum atom has 13 protons (+) and 10 electrons (-), what is it's charge?

• Al³⁺
• Al¹³⁺
• Al¹⁰⁺
• Al^10-

Tags

NGSS.MS-PS1-1

Nitrogen will ____ electrons when forming an ionic bond.

• gain 1
• lose 1
• gain 3
• lose 3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is NOT a property of ionic compounds?

• They are crystalline.

• They conduct electricity when in solution.

• They have high boiling points.

• They are insoluble in water.

Magnesium bromide is an ionic compound with the formula unit MgBr₂. What does the "2" tell you?

• There are 2 bromide ions for every magnesium ion

• Bromide has a 2- charge

• Bromide has a 2+ charge

• There are 2 magnesium ions to every bromide ion

Tags

NGSS.MS-PS1-1

Which types of elements become cations?

• nonmetals

• metals

• only transition metals

• metalloids

Atoms gain or lose electrons to become stable by satisfying this rule.

• Lewis Structure Rule

• Periodic Law

• Octet Rule

• Ionic Law

What do you call a bond that forms when electrons are transferred from one atom to another?

• a compound bond
• an ionic bond
• a crystal bond
• an atomic bond

Based in sulfur's charge, what would be copper's charge in Cu₂S?

• +1

• +2

• -1

• -2