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Which of the following statements about the partial charge in the compound ClF is correct?

F will have a partial negative charge, and Cl will have a partial positive charge.
F and Cl will have partial negative charges.
F and Cl will have partial positive charges.
F will have a partial positive charge, and Cl will have a partial negative charge.

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

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

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.