Friday Feb. 2

Let's review: Which elements are colored red?

• nonmetals

• metals

• metalloids

Which section are the metals in?

• dark blue

• light blue

• purple

• pink

Ionic compounds are formed from _____.

• two nonmetals.

• a metal and a nonmetal.

• two metals.

True or False: Ionic compounds are usually liquids at room temperature.

• True

• False

Which of the following is NOT TRUE about covalent compounds?

• They have low melting and boiling points.

• They are formed from 2 nonmetals.

• They can conduct electricity when dissolved in water (aqueous).

What set of elements is most likely to form a covalent compound? (Hint: you might need the periodic table to help you out here.)

• Na and O

• Na and K

• O and C

Which type of bond is formed from the sharing of electrons?

• ionic bond

• covalent bond

Is the following compound ionic or covalent?

A material that contains a metal and a nonmetal

• Ionic

• Covalent

Is the following compound ionic or covalent?

BaI₂

Hint: Find the location of each elements on the periodic table.

• Ionic

• Covalent

Which is the Roman Numeral for +3?

• I
• II
• III
• +III