Radium (Ra) is in the same group of the Periodic Table as magnesium. What is the charge on a radium ion?

What will most likely happen when two bromine atoms bond together?

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals

Why dose heating increase the speed at which a solution dissolved in water