the numbers 1 through 4 are used to identify four different elements on the periodic table. which element is expected to have 2 charge when it forms an ion?

Conservation efforts have been effective in "increasing the number of endangered species, reducing all the negative impacts of human activity, and preserving wildlife habitats".hope my answer has you : ) 

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.

Sorrr but idk whats its abou 9

My best guess is that most of the earth would freeze causing an almost ice age like catastrophe