12. convert the melting
point of gold is 1,064 °c.
what is its melting point in
degrees fahrenheit?

The first element on the periodic table of elements is carbon. a. true b. false

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

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