Which is an acceptable Lewis structure for a diatomic nitrogen moleculel OAN
.N
N.
OC
:N
N:
OD.
N
N
OE.
NEN:

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

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?