Fellow chemists, I need your help!

What type of ions do the following atoms form?
Indicate both the sign and value

Li
Ca
N

Question

Fellow chemists, I need your help!

What type of ions do the following atoms form?
Indicate both the sign and value

Li
Ca
N

danjs · Answer

oxidation states?

unklerhaukus · Answer

lithium appear in the first column of the PT

unklerhaukus · Answer

atoms this column 'loose a single electron', to form positive ions (+1)

danjs · Answer

These things will be come second nature after a few weeks, Li +1 and Ca +2 and N -1  for example,, i could be wrong though, maybe 8 yrs since chem

danjs · Answer

Periodic trends

unklerhaukus · Answer

^ that is not right for nitrogen at all

madhu.mukherjee.946 · Answer

ca -cation li-cation

madhu.mukherjee.946 · Answer

n-anion

danjs · Answer

ha yeah, -3, sorry

ramirocruzo · Answer

There ions are formed to reach to the nearest stable electronic configuration i.e. noble gas configuration.......So, in case of them, 
Li needs to reach He config. i.e. 1 less e-, so, ion will be Li1+

danjs · Answer

i should go, only took 2 semesters of chem a few years ago... goodluck

madhu.mukherjee.946 · Answer

so @steve816  are you satisfied with the answers

steve816 · Answer

So how do I know if it's +1 or +2 and such?

ramirocruzo · Answer

He has 2e- but Li has 3, so, 3-2=+1

danjs · Answer

group 1  is -1 generally, and group 2 is +2,, transitions have many different ones,  and the others,halogens -1, then moving left -1 more each.. to begin

danjs · Answer

+1

steve816 · Answer

Thanks everyone for all the answers :D Really appreciate it. Wish I could give more than 1 medals, but I think I understand it now :)