Sara would like to open a bank account. What will she need to do this? Check all that apply. identification card high school diploma money to start the account birth certificate proof of address

Which substances have the lowest melting points: ionic covalent, or metallic

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

Apush or pull that moves or changes and object when to objects touch