Page 1 of 1

Cation Vs. Anion

Posted: Tue Oct 18, 2016 3:53 pm
by Parsia Vazirnia 2L
How do you know if an element is a cation or an anion?

Re: Cation Vs. Anion

Posted: Tue Oct 18, 2016 3:59 pm
by Andrew Nguyen 3G
If an element has a positive or a negative superscript, it is an ion (Fe 2+, Ca2+, Cl- are some examples). Cations are positive. Anions are negative. These positive and negative characteristics are caused by less or extra electrons.

Re: Cation Vs. Anion

Posted: Tue Oct 18, 2016 4:50 pm
by Parsia Vazirnia 2L
yes I understand that but like how would you know that Fe has a +2 charge and same goes with Ca2+, Cl-

Re: Cation Vs. Anion  [ENDORSED]

Posted: Tue Oct 18, 2016 5:44 pm
by Ruiz Samantha 2C
(Cations) Group 1 elements will have a +1, group 2 elements will have +2, and group 3 as +3, group 4 as +4 because they are losing an electron.
(Anions) Group 15 as -3, group 16 as -2 and group 17 as -1 because they are gaining 1 electron.
Group 18, the noble gases are stable so they do not have a + or -

Re: Cation Vs. Anion

Posted: Tue Oct 18, 2016 7:18 pm
by Mirian_Garcia_2G
While a cation is an ion with a positive charge, an anion has a negative charge. Examples of cations include Sodium (Na+) and Lead (Pb2+). Examples of anions include Nitride (N3-) and Hydride (H-). Try thinking if it this way: cations have more protons than electrons, while anions have more elections than protons. Maybe this can also help: AN(negative)ION & CAtION (the t can be seen as a + sign).

Re: Cation Vs. Anion

Posted: Tue Oct 18, 2016 8:56 pm
by Parsia Vazirnia 2L
Ruiz Samantha 3E wrote:(Cations) Group 1 elements will have a +1, group 2 elements will have +2, and group 3 as +3, group 4 as +4 because they are losing an electron.
(Anions) Group 15 as -3, group 16 as -2 and group 17 as -1 because they are gaining 1 electron.
Group 18, the noble gases are stable so they do not have a + or -


What about for the transition metals?

Re: Cation Vs. Anion

Posted: Tue Oct 18, 2016 9:18 pm
by Ruiz Samantha 2C
Parsia Vazirnia 1F wrote:
Ruiz Samantha 3E wrote:(Cations) Group 1 elements will have a +1, group 2 elements will have +2, and group 3 as +3, group 4 as +4 because they are losing an electron.
(Anions) Group 15 as -3, group 16 as -2 and group 17 as -1 because they are gaining 1 electron.
Group 18, the noble gases are stable so they do not have a + or -


What about for the transition metals?



So in high school our teacher didn't really touch on transition metals because he said they are a little more complex and some of them have exceptions but I found this picture online. Hope it helps..