Which of the following contain localized valence electrons? a. Cu
b. C 2 H 6
C 6 H 6
d. none

The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?

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

Label a-f based on the table using c for concentrated and d for dilute