Question

An element combines with carbonate ions and
present as its respective carbonate in the earth
crust. The element can donate either two or three
electrons during chemical reactions and can be
removed from unwanted impurities by the
magnetic separation. Identify the element 'A' and
also find the number of electrons donating in this
existing carbonate compound.​

Answer 1

The element is Iron. Number of electrons donating carbonate compounds is 2.

Answer 2

Explanation:

the elements is iron.

number of electrons donating in this

existing carbonate compound. is 2