Bonding

What elements generally make a covalent 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.

How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• 4

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

If an oxygen atom has 8 protons (+) and 10 electrons (-), what is it's charge?

• O^10-
• O⁸⁺
• O^2-
• O¹⁰⁺

High Melting & Boiling Points

• Ionic
• Covalent

Soluble in Water

• Ionic
• Covalent

Ionic bonding is between a

• nonmetal and nonmetal

• metal and nonmetal

• metal and metal

• Depends on the situation

Predict the bond between Mg and Cl

• covalent

• ionic

• metallic

• none of the above

CaCl₂ is an example of what type of bond?

• Covalent

• Metallic

• Ionic