Predict the empirical formula of the ionic compound that forms from magnesium and fluorine

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's

How is the atomic number of a nucleus changed by alpha decay