I think what you are asking is about is which group on the Periodic Table has elements with an oxidation number of -1 in most ionic compounds. That is the 17th group - the halogens.
It would be the ion fluoride, formed when a fluorine atom gains an electron. None of the elements on the periodic table are charged in their elemental state.
Hydrogen is located on the first period; the first row in the periodic table.
Helium is in the first period of the periodic table.
Period 1 refers to the top row of the periodic table. These elements are Hydrogen and Helium.
Period 1
Lithium is in the first period of the periodic table. It is the first element in the alkali metal group.
Group-17 elements have negative 1 charge. Examples are chlorine, bromine, iodine etc.
halogens
Table salt NaCl consists of Na+ and Cl- ions. Na+ has a charge of +1, while Cl- has a charge of -1.
period 3 group 1
1
Helium is located in period 1 on the periodic table.