False.
No, the first element on the Periodic Table is Hydrogen, but because of its unusual behaviour it is usually placed by itself, not next to any other elements. The second element is Helium.
Helium
hydrogen (and helium)
Helium is not a group. It is an element.
Helium
No, the first element on the Periodic Table is Hydrogen, but because of its unusual behaviour it is usually placed by itself, not next to any other elements. The second element is Helium.
Helium
False (Hydrogen has the first position, Helium is the most stable)
No. It is hydrogen. Refer to the related link.
hydrogen (and helium)
Nitrogen has the highest first Ionization potential.
Helium is not a group. It is an element.
Helium is an element. It is in the 18th group of the periodic table. It is a noble gas.
Lithium is the smallest element in the periodic table if Hydrogen and Helium are excluded.
helium
Helium
Yes, it is true.