Question

What are26th;27th;28th;29th;and 30th elements

Answer 1

26th =Iron it's symbol is Fe and mass no. is 55.8
27th =cobalt,sym=co,mass no.=58.9
28th =nickel,sym=Ni,mass no.=58.7
29th =copper,sym=Cu,mass no.=63.5
30th =zinc ,sym=Zn, mass no.=65.4

Hope it helps you......dear!!☺☺

Answer 2

Iron Cobelt Nickel and last is zinc