Which set out of them shows the correct sequence of metallic characters?

Q. Which set out of them shows the correct sequence of metallic characters?

A.            Be ,Mg,Ca

B.            Na,Li,K

C.            Mg,Al,Si

D.            C,O,N

 Answer: Be ,Mg,Ca

We will be happy to hear your thoughts

Leave a reply

Gkseries.com
Logo
Register New Account