Calcium occurs in

Solid calcium occurs as either cubic closest packing or hexagonal closest packing. What is the most significant difference between these two structures?

Calcium deficiency occurs in the absence of vitamin

Calcium deficiency occurs in the absence of vitamin

Calcium deficiency occurs in the absence of vitamin

State the reason for the following : Calcium does not occur in free state in nature.

How does calcium carbonate occurs in nature?

Calcium phosphate (V) occurs in nature gas