Period Group Valence

UP and DOWN columns on the periodic table are

• groups

• periods

SIDE TO SIDE rows on the periodic table are

• groups

• periods

Which elements have properties in common?

• elements in a group

• elements in a period

The group number tells you the number of

• protons

• valence electrons

• energy levels

The period number tells you the number of

• protons

• energy levels

• valence electrons

Which two elements have properties in common?

• Nitrogen and Phosphorous

• Oxygen and Nitrogen

• Sulfur and Nitrogen

How many protons does Lithium have?

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

These elements are in a:

• group

• period

Do these elements have properties in common?

• yes

• no

These elements are in a:

• group

• period