How many atoms are in 6.30 moles of sulfur (S)?

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?