How many moles are equivalent to 5.75x1024 atoms of al?
a. 9.55 mol of al
c. 5.46mol al
b. 9.61mol al
d. 10.10mol al

How many moles are equivalent to 55.5g of nano3

What provides structure to the human body?

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