The element is radium, it can be placed in the bones.
Bones contain the element Calcium (Ca). It is not this element but compounds made out of this element that gives bones their strength. These compounds are calcium phosphate and calcium carbonate.
This element is calcium.
Calcium
Milk
Calcium
for strong bones(:
Calcium, Phosphorus
calcium
That is the correct spelling of the element "calcium" (notably in bones and seashells).
Calcium
Milk
Calcium