Which of the following is a metalloid?

• Silver

• Antimony

• Bismuth

• Aluminum

The following elements are non-metal, except?

• Sodium

• Beryllium

• Radon

• Rutherfordium

Choose all metallic elements from the following list. Tick all that applies

• Neon

• Krypton

• Potassium

• Technetium

• Chromium

Subatomic particle that is positively charged

The kind of chemical bonding that atoms of one element give up their valence electron to be donated to another element.

Identify which kind of chemical bond exists on a given compound:

Lithium fluoride

Identify which kind of chemical bond exists on a given compound:

Ammonia

Identify which kind of chemical bond exists on a given compound:

Calcium chloride

Identify which kind of chemical bond exists on a given compound:

Pure iron

Identify which kind of chemical bond exists on a given compound:

H2O (water)