Periodic Trends 3

Which element has 3 valence electrons?

• A

• B

• E

• C

Which element has a full valence shell?

• F
• D
• C
• E

Which elements have the same number of valence electrons?

• A & C
• E & C
• F & A
• F & B

Which elements are in the same period?

• A & F
• F, B & D
• E & D
• F & B

Is this a metal, nonmetal or metalloid?

• Metal
• Nonmetal
• Metalloid

To which group does this atom belong?

• 1

• 3

• 13

• 11

How many energy levels does an atom of Chlorine have?

• 2
• 3
• 4
• 7

Which element has the same number of valence electrons as this element?

• Bromine (Br)
• Nitrogen (N)
• Calcium (Ca)
• Boron (B)

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

Elements in a ..................have similar chemical properties.  

• period
• group
• row