Chemical Bonding Review

Is H₂O₂ an element or a compound?

• element

• compound

Tags

NGSS.MS-PS1-1

An atom that gains or loses an electron becomes

• an isotope

• a new element

• an ion

• a molecule

Ionic bonds happen when valence electrons are

• shared

• too heavy

• transferred

Valence electrons are

• neutral (no charge)

• found in the outer most energy level of the atom

• equal to the number of protons

Which type of bond occurs between non metals?

• covalent bonds

• ionic bonds

• metallic bonds

• all types of bonds

How many valence electrons does Oxygen have?

• 0

• 16

• 6

• 8

Tags

NGSS.MS-PS1-1

Most elements bond to create compounds because

• their outer electron level is full

• they are unstable

• they are positively charged

What elements generally make an ionic bond?

• metal and nonmetal
• 2 nonmetals
• metal
• none of the above

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

Tags

NGSS.HS-PS1-1

Predict the bond that will form between Be and F.

• Ionic
• Covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2