Calculate the number of moles in 3.025 x 10^28 atoms of nacl. 1.0 mol nacl 5.02 x 10^4 mol nacl 5.02 x 10^50 mol nacl 1.78 x 10^39 mol nacl

The boiling point of liquids is very high what does it indicate

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false