Bonding Review

The chemical bond formed when two atoms share electrons is called a(n)

• covalent bond

• ionic bond

• metallic bond

• electron bond

Which pair of atoms will combine with each other and form an ionic bond?

• C and O

• C and H

• Ca and Mg

• Ca and Br

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What is the chemical formula of an ionic compound formed between Magnesium and Chlorine

How does calcium become a calcium ion?

• Lose 2 electrons

• Gain 2 electrons

• Lose 1 electron

• Gain 1 electron

Which is the correct name for CaCl₂, and why?

• Calcium chloride, because ionic compounds don't get number prefixes

• Calcium chloride, because covalent compounds don't get number prefixes

• Calcium dichloride, because ionic compounds get number prefixes

• Calcium dichloride, because covalent compounds get number prefixes

Ionic Bonds

• Non metal and non metal

• Metal and non metal

What does a Roman numeral in an ionic compound's name mean? Example: chromium (III) nitrate

• the charge of the metal ion

• the subscript of the metal ion

• the subscript of the other ion

• the atomic number of the metal ion

Electrons of Ionic Bonds are ____________?

• Transferred

• Shared

• Combined

• Split

Which of these properties does NOT accurately describe ionic compounds?

• high melting point

• hard and brittle

• conducts electricity when solid

• conducts electricity when melted or dissolved

An atom becomes a positive ion when it gains an electron.

• True

• False. It becomes a negative ion!

• False. It becomes a neutral ion!