Atoms and PT Review

The order of elements in the periodic table is based on

• the number of protons in the nucleus.

• the electric charge of the nucleus.

• the number of neutrons in the nucleus.

• atomic mass.

The one- or two-letter abbreviation of an element on the Periodic Table is called its

• symbol

• contraction

• group

Each element in an element family shares the same

• average atomic mass

• number of valence electrons

• atomic number

Elements in an element family have similar

• atomic symbols

• atomic sizes

• atomic weights

• chemical properties

How do you know that potassium, an alkali metal, is highly reactive?

• It conducts heat.

• It is a soft and shiny metal.

• It has one valence electron.

A vertical column on the periodic table is also called…

• a family

• a period

• a row

What is the atomic number of silver?

• 79

• 108

• 47

• 61

What is the mass number of silver?

• 47

• 108

• 0

• 61

Which of the following is not a member of the Nitrogen group?

• Arsenic

• Barium

• Nitrogen

• Antimony

At room temperature, more than half of the nonmetal elements are

• liquids

• gases

• solids