Unit 8: Chemical Bonding

Ionic Bonding involves:

• The transfer of protons

• The transfer of neutrons

• The transfer of electrons

• None Of the above

Covalent compounds:

• Share electrons

• Transfer electrons

• Neither

What is a valence electron?

• an electron that is found in the outermost shell of an atom.

• an electron found in the innermost shell of an atom.

• an electron found in the middle shell.

What is the number of valence electrons for Neon and the other Noble Gases?

• 5

• 6

• 7

• 8

If an atom transfers an electron to another atom, those atoms form which bond?

• Ionic Bond, which is stronger than a covalent bonds

• Covalent Bond, which is stronger than ionic bonds

Bonds that form between two metals are called ______________ bonds.

• ionic

• covalent

• metallic

• pervasive

How many valence electrons in this structure?

• 6
• 5
• 4
• 7

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