What type of solid will each of the following substance from in its solid state? Choices to consider are metallic, ionic, covalent, or molecular solids. a. C2H6
b. Na2O
c. Sio2
d. CO2
e. N2O5
f. NaNO3
g. Al
h. C(diamond)
i. SO2

Lewis structure and molecular geometry for nh2cl

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

The time that is taken by neptune once around the sun is called