17
As==Arsenic. This element is a metaloid.
Oxygen is the first element in group 16 of the periodic table
Helium is the element that doesn't belong in a group with any others on the periodic table. It is part of Group 18, the noble gases, which are characterized by their stable and unreactive nature.
Copper belongs to the element group of transition metals in the periodic table.
The element in the same group as Al is boron (B). They both belong to Group 13 in the periodic table.
Yes, it belongs to group 6 in the periodic table and its a gas
The element neon belong to the periodic group of noble gases, these are also called inert gasses. The element when under standard condition has no odor, no color and has a monatomic gas.
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
It would belong to group XVI, the group with oxygen.
The element yttrium is found in the transition metal location on the periodic table and is very similar to the lanthanides so it has been grouped with them as a rare earth element.
Your question does not make sense. Sodium is an element. It is a member of the "alkali metal" group of elements. (Group 1 in the Periodic Table.)
group 1, or 2, or ... 18 depends on its properties.