What is the charge on the nonmetal in the ionic compound calcium phosphide? +2

+3

-3

-2

Which statement is true about ionic compounds?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

Element before carbon on the periodic table