To quote information means to
a. explain where you found it
b. rewrite it in your own words
c. check if the information is reliable
d. copy a small section word-for-word

Well you can immediately rule out a and d because if a metal were to lose or gain protons, then it would become a different element all together. the answer here is b because the positive symbol with a number refers to how many electrons the metal can give away to become stable.

Iknow this i just forgot the name

Descriptive investigations are mainly questions to uncover information. it does not have an hypothesis. it's mainly gathering information, it is not repeatable as you are just asking questions.