Covalent Bonding Test Review

If the atoms that share electrons have an unequal attraction for the electrons, the bond is called

• nonpolar

• polar

• ionic

• dipole

A neutral group of atoms held together by covalent bonds is a

• molecular formula

• chemical formula

• molecule

• monoatomic ion

Elements that form multiple covalent bonds include

• oxygen

• carbon

• nitrogen

• all of the above

What is the formula for dioxygen pentachloride?

• OCl₄

• O₂Cl₅

• O₅Cl₂

• O₄Cl

Why do most atoms form bonds?

• to be more stable by completing the octet

• to be less stable

• to add more electrons

• to carry out physical changes

If two covalently bonded atoms are identical, the bond is

• coordinate covalent

• polar covalent

• dipole covalent

• nonpolar covalent

What are shared in a covalent bond?

• ions

• Lewis structures

• dipoles

• electrons

Tags

NGSS.HS-PS1-1

The B-F bond in BF₃ (electronegativity for B is 2.0; electronegativity for F is 4.0) is

• polar covalent

• ionic

• nonpolar covalent

• metallic

In a molecule of fluorine, the two shared electrons give each fluorine atom how many electron(s) in the outer energy level?

• 1

• 2

• 8

• 32

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The following molecules contain polar bonds. The only polar molecule is

• CCl₄

• CO₂

• NH₃

• CH₄