Chem Ionic & Molecular compounds

What type of compound is made from a metal and a nonmetal bonded together?

• nonpolar covalent compound

• metallic compound

• ionic compound

• polar covalent compound

Which of the following BEST describes ionic bonds?

• Bond held together by a sea of electrons
• Bond of two ions of opposite charges held together by electrostatic forces
• Bond held together by the sharing of electrons
• Bond between hydrogen and an anion or polyatomic ion.

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NGSS.HS-PS1-3

When an ionic compound is formed, its charge is 

• negative
• neutral (no charge)
• positive

Metals tend to 

• gain electrons
• lose electrons

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NGSS.HS-PS1-1

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How are ionic bonds formed?

• Transfer of electrons

• Sharing of electrons

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NGSS.HS-PS1-1

Metals make _____ ions.

• positive

• negative

• neutral

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

When an atom loses a valence electron, it becomes a(n) _________ion.

• positive 
• negative

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Is the following compound ionic or covalent?

LiBr

• Ionic

• Molecular

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NGSS.HS-PS1-3

Is the following property true or false for an ionic compound?

A material with a high melting point

• True

• False

The following properties are all characteristics of ionic compounds EXCEPT

• high melting and boiling points

• soft

• crystal lattice structure

• conduct electricity when dissolved in water

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NGSS.HS-PS1-3