There are only 7 groups. There are no more.
Silver is the element in 5th period and 11th group. Its symbol is Ag.
Fifth group: V, Nb, Ta, Db.
Eleventh group: Cu, Ag, Au, Rg.
silver (Ag)
Ag, Silver
Xenon.
Potassium (K)
Element Name: Arsenic. Chemical Symbol: As.
That element would be carbon.
iron
There is no element that has been found yet with those characteristics ( group 5, period 2)
Platinum
Xenon.
Argon is a noble gas element. It belongs to period 3, group 18.
Group 7 of the periodic table of Mendeleev and period 7 (transfermium elements).
Potassium (K)
Element Name: Arsenic. Chemical Symbol: As.
chlorine, 17, 17 in order you asked.
That element would be carbon.
iron
there is no element found in such a place because that spot doesn't exist. there is a period 4-7 but not 1-3 for group 6. that particular spot is open and doesn't include any elements
Neon, it is in Period 2, Group 18. Groups are the columns and Periods are the rows in the Periodic Table.