Atomic Structure Valence Electrons Periods and Groups

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

• outer shell electrons

• electron shells

• electrons

The period number tells you the number of

• electrons

• electron shells

• outer shell electrons

• outer shells

Tags

NGSS.HS-PS1-1

Which two elements have properties in common?

• Nitrogen and Phosphorous

• Oxygen and Nitrogen

• Sulfur and Nitrogen

How many electrons does Lithium have?

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

These elements are in a:

• group

• period

These elements are in a:

• group

• period

Tags

NGSS.HS-PS1-1

Do these elements have properties in common?

• yes

• no