
How many groups are on the Periodic table
What element is in period 4, Group 12?
What type of element is Hafnium
What period is Uranium in
What are Group 1 elements called?
What element has 50 ptotons in its nucleus
How many electrons can period 2 hold in their outermost shell
What are elements 89-103 called ?
How many outer/valence electrons are in Group 17
How many neutrons are in the most commom version of krypton?
What period and group is Gold in?
What is the third element in Group 18?
What type of element is Germanium?
What group is chlorine in? What is the group name?
What element is in group 12, period 7?
How many valence electrons are in barium?
How many electron shell/orbitals/rings does xenon have
What type of element is oxygen?
What element has 16 protons?
Which group of elements has 3 valence/outer electrons
What type of element is Calcium?
What is the name for the elements in groups 3-12
How many neutrons are in a neutral atom of platinum?
What is the 11th element in Period 4?
What type of element is Tellerium?
How many protons in tungsten?
What is the symbol for tin ?
What are the group 2 elements called ?
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How many neutrons are in a neutral atom of lead?