8.5 C

• The two elements are in the same period, with Element R the first element in the period and Element Q the last element.
• The two elements are side by side in the same period, with Element Q to the left of the Element R.
• The two elements are in the same group, with Element R just above Element Q.
• The two elements are in the same group, with Element Q at the top of the group and Element R at the bottom. 

• Choice F
• Choice G
• Choice H
• Choice J

• Lithium
• Stontium
• Aluminum
• Silicon

Which two elements on the periodic table are in the same period?

• Sn and Rb
• F and Cl
• K and Ba
• Se and Te

• Atom 1 and Atom 2
• Atom 1 and Atom 4
• Atom 2 and Atom 3
• Atom 3 and Atom 4

A researcher wants to experiment with an element that react like phosphorus (P) but has a greater atomic mass.  Which element should the researcher select for the experiment?

• Nitogren (N)
• Sulfur (S)
• Arsenic (As)
• Silicon (Si)

• 1
• 2
• 3
• 4

Elements in the same period/row have the same--

• # of valence electrons

• # of protons

• # of energy shells

• # of neutrons

How many periods are on the Periodic Table?

• 6

• 7

• 8

• 9

Which element is NOT in Period 3 on the Periodic Table?

• Na

• Ar

• P

• Ne