group 1 is Li, Na, K, Rb, Cs and Fr.
Hydrogen is found in group 1 row 1 of the periodic table
Hydrogen is the first element in the periodic table of Mendeleev - atomic number 1. Hydrogen is placed in the group and period 1 of this table.
The group no. of Lithium is 1 and its period number is 2.
Actually group 1 is ALL elements and so is the whole periodic table.
Francium is amrmber of the alkali metal familiy (group 1 in the Periodic Table of Mendeleev): Li, Na, K, Rb, Cs, Fr.
A group in Periodic Table is the column of element in periodic table
Cesium is found in group 1 of the periodic table.
Helium is in the first period of the periodic table.
+1
Sodium, Na, is in group 1 period 3 on the periodic table.
Hydrogen
The abbreviation for potassium is " K " in the periodic table. It is placed in group-1 of the periodic table.