Covalent Bonds

Why do atoms share electrons?

• to increase their atomic number

• to become ions

• to obtain noble gas electron configuration

• to become less polar

Which of the following can form diatomic molecules held by triple covalent bonds?

• N₂

• O₂

• F₂

• C₂

Which of the following diatomic molecules can be formed with a double covalent bond?

• N₂

• O₂

• F₂

• C₂

Two elements join to form a triple bond. What is the shape of the molecule?

• tetrahedral

• bent

• linear

• diatomic

If two identical atoms bond covalently, the bond is:

• a coordinate covalent bond

• a dipole covalent bond

• a nonpolar covalent bond

• a polar covalent bond

What does a molecular formula tell you?

• information about the molecule's structure

• the number and kind of atoms bonded in the molecule

• the whole-number ratio of atoms bonded in the molecule

• the number and kind of atoms bonded by electron transfer

VSEPR theory is a model for predicting

• ionization energy

• the strength of metallic bonds

• the shape of molecules

• lattice energy values

Which of the following covalent bonds is the most polar?

• H-N

• H-C

• H-H

• H-F

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

• dipolar

• nonpolar

• ionic

• polar

In covalent bonds electrons are:

• shared

• transferred

• mobile

Tags

NGSS.HS-PS1-1