Explain why atoms would gain or lose electrons in order to resemble the elements in the particular group you named above. Consider what you learned about elements in that group.

The number of electrons in the outermost shell of an element is represented in the periodic table as the group number that element is situated in. ... the number of electrons in all shells of an element is represented in the periodic table as the element's atomic number.

Explanation:

thatdummyemily

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the answer is 0.42 is that is an option. this question provides no info