Which property determine am atoms ability to attract electrons shared in a chemical bond? a. ionization b. atomic radiusc. electronegativityd. ionic radius

What is the formula that this ionic compounds could form sr2+p3-o2-

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

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li