Question

Write the formula for the ionic compound formed from radium and sulfura) RaSb) Ra2S2c) Ra3S2d) RaS2e) Ra2S

Answer 1

Explanation:

Radium sulfide can be prepared by direct combination of the elements (radium and sulfur)

The reaction between radium and sulfur can be represented below as

`Ra\text{ + S +heat }\rightarrow\text{ RaS}`

Therefore, the chemical formula for Radium sulfide is RaS