STAAR Review

Protons and neutrons are found in the center of the atom called the:

• nucleus

• neutron

• shell

• cell

What is the sum of an atom's protons and neutrons called?

• atom

• atomic theory

• atomic mass

• atomic number

What is the atomic number of this atom?

• 1

• 3

• 4

• 7

How many Valence Electrons does this element have?

• 7

• 5

• 4

• 2

How many energy levels do atoms in period 3 have?

• 1

• 2

• 3

• 4

How many valence electrons are in elements in group 17, 7A?

• 7

• 17

• 8

• 5

What does the period number tell you about an element?

• Number of energy levels

• Number of valence electrons

What does the group number tell you about an element?

• The number of energy levels

• The number of valence electrons

Elements in the same group (column) will have similar properties.

• True

• False

What type of element has these properties: Shiny, malleable, good conductor, solid.

• Metal

• Nonmetal

• metalloid