Covalent Bonding Test Review

The chemical bond formed when two atoms share electrons is called

• covalent bond

• ionic bond

• metallic bond

• electron bond

Tags

NGSS.HS-PS1-1

Which formula represents a substance that contains covalent bonds?

• LiCl

• CaCl₂

• K₂O

• CO₂

Tags

NGSS.HS-PS1-1

A regular, repeating arrangement of atoms, ions, or molecules is ...

• a compount

• a crystal

• impossible to break

• a polyatomic ion

Tags

NGSS.HS-PS1-3

The electrons that are lost, gained, or shared in chemical bonds are called _____.

• valence electrons

• chemical electrons

• Lewis electrons

• none of the above

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which atoms are most likely to form covalent bonds?

• metal atoms that share electrons

• metal atoms that share protons

• nonmetal atoms that share electrons

• nonmetal atoms that share protons

How many electrons are shared within a single bond?

• 0

• 1

• 2

• 3

Which of the following is NOT an example of covalent bonding?

• H₂0

• NaF

• NH₃

• O₂

How many electrons are needed in the outer energy level of most atoms for the atom to be chemically stable?

• 2

• 4

• 6

• 8

Tags

NGSS.HS-PS1-1

Which of the following is a similarity between ionic and covalent bonds?

• both include the gaining and losing of electrons

• both include the sharing of electrons

• both make the element more stable

• both are typically found as solids at room temperature

Tags

NGSS.HS-PS1-1

Which of the following is the correct name for a compound between phosphorous and chlorine?

• phosphorous chlorine

• phosphorous chloride

• phosphorous (III) chloride

• phosphorous trichloride