Chemistry Review

Identify the element with 79 protons.

• Gold

• Bromine

• Mercury

• Selenium

Identify the element with 4 valence electrons and the least mass.

• Carbon

• Silicon

• Titanium

• Zirconium

Identify the metalloid in period 3 with more protons than sodium and fewer valence electrons than chlorine.

• Silicon

• Aluminum

• Germanium

• Arsenic

Identify the metal in period 3 that is more reactive than magnesium.

• Sodium

• Aluminum

• Potassium

• Lithium

Identify the nonmetal in period 4 that is more reactive than selenium.

• Bromine

• Krypton

• Chlorine

• Iodine

Identify the nonmetal in period 3 that is less reactive than sulfur

• Phosphorus

• Chlorine

• Argon

• Silicon

Identify the element with 47 protons

• Silver

• Titanium

• Gold

• Copper

Identify the element in period 5, group 17.

• Iodine

• Astatine

• Bromine

• Xenon

Identify the element with 5 valence electrons in period 4.

• Arsenic

• Antimony

• Vanadium

• Dubnium

Identify the element with 3 energy levels and 2 valence electrons.

• Magnesium

• Calcium

• Strontium

• Barium