Unit 4 Test Review – Bonding, Nomenclature and Properties

How many valence electrons are in an atom of Carbon?

• 2

• 3

• 4

• 5

Of the elements Se, V, Li, and Pt, which is a nonmetal?

• Se

• V

• Li

• Pt

Which of the following statements is true about ions?

• Cations form when an atom gains electrons.

• Cations form when an atom loses electrons.

• Anions form when an atom gains protons.

• Anions form when an atom loses protons.

The octet rule states that, to be a stable compound, atoms want:

• to be like a noble gas.

• more protons than electrons

• less than eight valence electrons

• more electrons than protons

The electrons involved in chemical bonding are called

• dipoles.

• s electrons.

• Lewis electrons.

• valence electrons.

What term would we use to identify a covalent compound?

• Ionic formula

• Molecular formula

• Formula unit

• Diatomic molecule

All chemical formula include the symbols of the elements in the compound and subscripts that indicate

• the number of particles of each element in the formula.

• how many atoms or ions of each type are combined in the simplest whole number ratio.

• the formula mass.

• the charges on the elements or ions.

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

• ionic bond

• orbital bond

• Lewis structure

• covalent bond

A chemical bond of attraction between positive and negative ions is called a(n)

• covalent bond

• orbital bond

• charged bond

• ionic bond

What is the formula for Sulfuric acid?

• HSO₄

• H₂SO₄

• H₂SO₃

• H₂S