Valence electrons
36 is the atomic numer of krypton. Krypton, an inert element, has the symbol ‘Kr’. Krypton atoms don’t participate in the formation any bonds.
Rubidium is 37th element on the periodic table. The element of group-1, rubidium, has the symbol ‘Rb‘. Rubidium is an acidic metal.
Strontium is located in the fifth period of group II of the main (A) subgroup of the Periodic Table. Strontium is an element of the alkaline earth metal.
Yttrium is a chemical element found in the periodic table with the symbol y and atomic number 39. It is a rare earth metal that is silvery white in color
Zirconium is the 40th element on the periodic table. Zirconium is the element in group 4. Its symbol is “Zr”. Zirconium belongs to the d-block group.
Niobium is located in the fifth period of Group V of the sideways (B) subgroup of the Periodic Table. Metal. Its designation is Nb. Serial number –