1.

Eka - aluminium and Eka-silicon are known as 4d^10 5 s^0. It belongs to

Answer»

gallium and GERMANIUM
aluminium and SILICON
iron and sulphur
proton and silicon

SOLUTION :EKA - aluminium is known as gallium and eka-silicon is known as germanium because gallium is similar in properties to aluminium and germanium is similar in properties to silicon.


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