The Electron

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

The second shell from the center of an atom can hold how many electrons?

• 2

• 6

• 8

• 18

Valence electrons are located...

• inside the nucleus

• in outer space

• on the outermost orbit of an atom

• 10

• 2

• 8

• 18

• 14

• 4

• 3

• 28

How many valence electrons are represented here?

• 7
• 5
• 2
• 8

How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• 4

Where is Calcium located on the periodic table?

• Group 4A, period 2

• Group 2A, period 4

• Group 7A, period 2

• Group 2A, period 7

Valence Electrons are the electrons located where?

• The outer shell of an atom

• The inner shell of an atom

• The nucleus of an atom

• In all of the shells of an atom

How many valence electrons are in the atom shown in the picture?

• 2

• 3

• 5