He is in period 1.
The element you are referring to is the element Antimony (Sb), which has an atomic number of 51 and belongs to period 5 of the periodic table.
The symbol for the fourth period alkaline element is K, which stands for potassium.
That element would be carbon.
The element in the same group as lithium (Group 1) and the same period as iron (Period 4) is potassium.
A period on the Periodic Table is another name for the row that an element is on.
There is no element that has been found yet with those characteristics ( group 5, period 2)
Beryllium.
Platinum
The element you are referring to is the element Antimony (Sb), which has an atomic number of 51 and belongs to period 5 of the periodic table.
The symbol for the fourth period alkaline element is K, which stands for potassium.
That element would be carbon.
The element in the same group as lithium (Group 1) and the same period as iron (Period 4) is potassium.
An element square consists of the element's name, symbol, atomic mass, and atomic number.
Argon is a noble gas element. It belongs to period 3, group 18.
an element of period 6 name has hafnium having atomic no 72 and atomic mass as 178.49
A period on the Periodic Table is another name for the row that an element is on.
Helium is a period 1 element.