Unit 4 Test Review

How many valence electrons does Nitrogen have?

• 15

• 5

• 7

• 3

What is the oxidation number (charge) of Bromine?

• 0

• -1

• 35

• +1

How many valence electrons does Lithium have?

• 2

• 1

• 3

• 7

What is the oxidation number (charge) of Magnesium?

• 0

• -2

• -2

• +2

Which of the following best describes a covalent bond?

• A bond formed by the sharing of electrons

• A bond formed between a metal and nonmetal

• A bond formed by the transfer of electrons

Tags

NGSS.HS-PS1-3

Which of the following is a Polyatomic ion?

• Na+

• So4 2-

• Cl-

• K+

Which of the following pairs of elements is most likely to form an ionic bond?

• Carbon and Hydrogen

• Sodium and Chloride

• Hydrogen and Oxygen

• Nitrogen and Oxygen

What is the chemical formula for aluminum oxide?

• Al3O2

• Al2O3

• Al2O

• AlO

Tags

NGSS.MS-PS1-1

Ionic Bonds are formed when atoms share electrons

• True

• False

What is the correct name for NaCl?

• Sodium Carbide

• Sodium Chloride

• Sodium Chlorate