Consider the following statements:
A) Calcium is present in S-block of the periodic table.
B) Metals comprise more than 78% of all known elements and appear on the left side of the Periodic Table.
C) d- Block elements are also known as inner-transition electrons.
1
A, B, C are true
2
Both A and B is true
3
Only B and C is true
4
Both A and C is true