## Electron Configuration of Cations

Heidi Ibarra Castillo 1D
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

### Electron Configuration of Cations

Example: Write the electron configurations of a. copper (|) ion b. copper (||) ion
When finding the electron configuration how do you know how many electrons to remove?

Andrew Sun 1I
Posts: 30
Joined: Fri Sep 28, 2018 12:18 am

### Re: Electron Configuration of Cations

It would just be the electron represented on the most right. for example, element (II) would have s2p5 and element(I) would be s2p4.

Leela_Mohan3L
Posts: 44
Joined: Fri Sep 28, 2018 12:26 am

### Re: Electron Configuration of Cations

Copper (I) has a +1 charge, so in order to get this charge you have to remove one electron. Copper (II) has a +2 charge, so you have to remove two electrons.

leediane0916
Posts: 31
Joined: Fri Sep 28, 2018 12:29 am

### Re: Electron Configuration of Cations

you decide how many electrons to remove depending on the charge on the cation!

mayra martinez 1D
Posts: 32
Joined: Fri Sep 28, 2018 12:17 am

### Re: Electron Configuration of Cations

For cations you know you will be removing electrons and so based on the ion's charge that's how many electrons you remove, thus giving you a positive ion.

John Kim Lec3Dis3L
Posts: 23
Joined: Fri Sep 28, 2018 12:17 am

### Re: Electron Configuration of Cations

Basically, the Roman numeral signifies the number of non-negated positive charges. Hence, copper (I) has a charge of +1 and copper (2) +2.

Letizia Ye 4F
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

### Re: Electron Configuration of Cations

Taking a look at the Roman numerals, the copper cation can either have +1 or +2 charge.

Katie_Duong_1D
Posts: 69
Joined: Fri Sep 28, 2018 12:27 am

### Re: Electron Configuration of Cations

Each electron has a -1 charge. Cations are made when electrons are removed from atoms.

To get copper (I), remove 1 electron. For copper (II), remove 2 electrons.

becca_vandyke_4b
Posts: 30
Joined: Fri Sep 28, 2018 12:29 am

### Re: Electron Configuration of Cations

if it is a positive charge, you take electrons away from the ground state. If it is a negative charge, you add electrons to the ground state.