Groups of the Periodic Table and Valence Electrons

How many valence electrons does a nitrogen atom have?

• 3

• 7

• 5

• 1

Which element has 2 valence electrons?

• H

• Ca

• Na

• C

Which group has elements with a full valence shell?

• Group 1

• Group 2

• Group 15

• Group 18

Which of the following is a metal?

• Lithium (#3)

• Silicon (#14)

• Sulfur (#16)

• Boron (#5)

Which element is a member of the halogen family?

• Sulfur (#16)

• Chlorine (#17)

• Argon (#18)

• Carbon (#6)

Which element is a member of the noble gases?

• Te (#52)

• Iodine (#53)

• Xenon (#54)

• Nitrogen (#7)

Which of the following is a nonmetal?

• Sulfur (#16)

• Lithium (#3)

• Sodium (#11)

• Silicon (#13)

Which of the following is a transition metal?

• Mercury (#80)

• Oxygen (#8)

• Calcium (#20)

• Aluminum (#13)

Where are the metalloids located on the periodic table?

• To the right of the staircase

• On the staircase

• To the left of the staircase

• Who knows

Which two elements are in the same period?

• Sn and Rb

• F and Cl

• K and Ba

• Se and Te