Since this is not my area of expertise, I searched Google under the key words "elements electron loss gain" to get these possible sources:
http://www.google.com/search?client=safari&rls=en&q=elements+electron+loss+gain&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
You might want to try to search for each element separately, e.g., "Cs electron loss gain."
Predict how many electrons will most likely be gained or lost by each of the following elements.
how do i know if they will lose of gain them?
here are the elements i need to know if they lose or gain them.
Cs
Al
Se
N
1 answer
2 answers