3. The electron configuration of 2-6-1 represents an atom of * oxygen and is in the ground state
fluorine and is in the ground state
oxygen and is in the excited state
O fluorine and is in the excited state

In 2002, the rare earth elements mine in mountain pass, california was closed because

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?

What information does a complete ionic equation give that the balanced equation doesn’t show?