Bonding Unit Exam

What two types of atoms make a covalent bond?

• metal atom and metal atom

• metal atom and non metal non atom

• non metal atom and non metal atom

What part of an atom is involved in chemical bonding?

• proton

• neutron

• electron

Examine the image: How many bonds are formed looking at the model of the compound? And also indetify what type of bond is formed.

• 2 bonds; covalent

• 4 bonds; metallic

• 2 bonds; ionic

• 4 bonds; covalent

This refers to the tendency of atoms to prefer to have eight electrons in the valence shell

• Octet rule

• Valence electron

• Electronegativity

• Lewis symbol

Draw the Lewis structure for H₂O

Which of the following are diatomic elements?

• iodine

• chlorine

• hydrogen

• phosphorus

• boron

Answer explanation

BrINClHOF

In the compound CoSO₄, what is the charge on cobalt?

• +4

• +2

• -2

• -1

Ne, Ar, and Kr are all in the same column (group) on the periodic table. What do all three of these elements have in common?

• atomic mass

• negative electrical charge

• number of neutrons

• full valence electron shells

Atoms of H only form _________ bonds.

• Double
• Single
• Multiple
• Triple

Name this ionic compound: Al₂O₃

• Dialuminum oxide

• Aluminum oxygen

• Oxygen Aluminide

• Aluminum oxide