Write a possible full set of quantum numbers for the electron gained when a bromine atom (br) becomes a bromide ion (br^−).

The answer is n = 4 , l = 1, m= +1 , ms = -1/2

Explanation:

When br atom gains one electron its atomic number becomes

36 br = 35

electronic config. = [ar] 3d 104s 24p5 br- = 36 = [ar] 3d 104s 24p6

so the electron goes into 4p that means

n = 4 , l = 1, m= +1 , ms = -1/2

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.