ions and ionic compounds

Question 1

atoms achieve complete stability by having a complete what?

Answer 1

valence energy level

Question 2

what is an ion?

Answer 2

a charged atom; the # of protons is different from the # of neutrons

Question 3

when is an ion formed?

Answer 3

when an atom gains/loses electrons

Question 4

in a metal, are electrons gained or lost to form an ion?

Answer 4

lost

Question 5

in a nonmetal, are electrons gained or lost to form an ion?

Answer 5

gained

Question 6

when a metal becomes an ion, is it positive or negative?

Answer 6

positive

Question 7

when a nonmetal becomes an ion, is it positive or negative?

Answer 7

negative

Question 8

can all electrons in an atom move?

Answer 8

no, only the valence electrons

Question 9

when is an ionic compound formed?

Answer 9

when a positive reacts with a negative

Question 10

what happens in an ionic compound?

Answer 10

a metal gives one or more of its electrons to a nonmetal in order for both to become stable

Question 11

do ionic compounds attract one another?

Answer 11

yes

Question 12

do ionic compounds have low or high boiling/melting points?

Answer 12

high

Question 13

are ionic compounds soluble in water?

Answer 13

yes

Question 14

are ionic compounds good conductors when dissolved in water or melted?

Answer 14

yes

Question 15

are ionic compounds good conductors when they are solids?

Answer 15

no