Question

Can I get a tip for remembering the valancy of transition element?

Answer 1

Answer:

quite big.....

yes you can memories the atomic no. and count for valence electrons if the valency is more then 4 then then the atom will gain electrons till 8 and if the valency is less than 4 then the atom will lose electron hence when it loses electron put +ve sign and if the atom gains electron then put -ve sign....