11. What kind of elements form POSITIVE ions? _What is the term for positive ions?
12. What kind of elements form NEGATIVE ions? __ What is the term for negative ions?
13. When an element forms a cation, it does so by LOSING one or more electrons. Where do(es) the
electron(s) go?
14. True or false: ionic compounds, such as sodium chloride, do not form molecules. _
15. The chemical formula for an ionic compound does not describe a molecule; what does it tell us?
16. Why do ionic compounds conduct electricity when dissolved in water?
17. What would be the name for each of these cations?
Magnesium-
Potassium-
Lithium-

it is a learned trait

explanation:

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.