Answer:
Calcium phosphorous
Step-by-step explanation:
First, this compound is a mixture of the following elements:
Ca: Calcium
P: Phosphor
Now, both of these elements are united as a binary compound, the metal and a non metal. When we have a binary compound with a metal and non metal, (When the non metal is not hydrogen or oxygen) this usually becomes a salt. A bynary salt. So a binary salt, we should name like this
In this, we should name first the metal and then the non metal with the sufije ous. In this case:
Calcium phosphorous.
Then the name of this salt is that.