The Periodic Table Practice Questions

Describe this element.

• Highly reactive metal
• Highly reactive nonmetal
• Stable
• Less stable non metal

Which of the following statements describes group 2 of the periodic table?

• Stable non-metals with 1 valence electron
• Stable Metals with 2 valence electrons
• Highly reactive non-metals with 1 valence electron.
• Highly reactive metals with 2 valence electrons.

Why are halogens so reactive?

• They want to get rid of their only valance electron

• They only need one more electron

• They are non reactive, they have a full shell

What groups are the most reactive metals?

• 2 and 3

• 1 and 18

• 1 and 2

• 16 and 17

What groups are the most reactive non metals?

• 1 and 2

• 16 and 17

• 2 and 17

• 1 and 16

When trying to identify an unknown element, a scientist determines what other elements reacts with chemically. Which property of the unknown element determines the other element it reacts with?

• The total number of neutrons in the unknown element

• The total number of particles in the nucleus of the unknown element

• The number of protons in the nucleus of the unknown element

• The number of valence electrons in the unknown element

Valence electrons are: 

• Electrons farthest away from the nucleus
• Electrons closest to the nucleus
• Electrons that just come and go - they don't stay with the atom
• Electrons in the second shell

What are valence electrons?

• The total number of electrons in an atom

• The number of electrons in the outermost shell

• The number of electrons in the second shell

• The number of protons in the outermost shell

How many valence electrons are found in atoms of group 15?

• 4
• 5
• 2
• 3

Which group has the greatest number of valence electrons?

• 1
• 14
• 18
• 16