Electron configuration calculator for Ions

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Ion electron configuration calculator is an online tool that helps in calculating the electron configuration for anion(negative charge) and cation atoms(positive charge). 

The ion-electron configuration calculator contains the list of some important elements with positive and negative charges, pick any of these by clicking on the dropdown box, and get an ion-electron configuration for the selected atom.

Ion electron configuration calculator

 

How to find electron configuration for ions?

The process of finding the electron configurations for ions, cation(positive charge) and, anion(negative charge) is very similar to neutral atoms, in the case of cation, we have to remove the electrons, and in the case of anion, we have to add the electrons to the configuration of atoms.

First of all, understand what are ions.

“Ion, any atom or group of atoms that bears one or more positive or negative electrical charges. Positively charged ions are called cations; negatively charged ions, anions.”

⇒ When an atom loses electrons it becomes a positive ion (called a cation).

positive charged ions electron configuration

⇒ When an atom gains electrons it becomes a negative ion (called anion).

negative charged ions electron configuration

Let’s understand with an example.

How to write the electron configuration for the Na+ ion?

  • We know, in general, that the electron configuration of Sodium (Na) is 1s22s22p63s1.
  • Now, in the Na+ ion, the positive charge means, Sodium loses one electron.
  • Therefore, to write the electron configuration of the Na+ ion, we have to remove one electron from the configuration of Sodium (Na).
  • The resulting electron configuration for the Sodium ion (Na+) will be 1s22s22p6. It resembles the configuration of the nearest inert gas i.e Neon.

How to write the electron configuration for the O2- ion?

  • We know, in general, that the electron configuration of Oxygen (O) is 1s22s22p4.
  • Now, in O2- ion, the negative charge means, oxygen has gained two extra electrons.
  • Therefore, to write the electron configuration of O2- ion, we have to add two electrons to the configuration of Oxygen (O).
  • The resulting electron configuration for Oxide ion (O2-) will be 1s22s22p6. It resembles the configuration of the nearest inert gas i.e Neon.

How to write the electron configuration for the Al3+ ion?

  • We know, in general, that the electron configuration of Aluminum (Al) is 1s22s22p63s23p1.
  • Now, in the Al3+ ion, the positive charge means, Aluminum loses three electrons.
  • Therefore, to write the electron configuration of the Al3+ ion, we have to remove three electrons from the configuration of Aluminum (Al).
  • The resulting electron configuration for the Al3+ will be 1s22s22p6. It resembles the configuration of the nearest inert gas i.e Neon.

Let’s check the list of some important ions with their electron configuration.

IonsGain or loss of electronsElectron configuration
Li+Lithium loses one electron1s22s1 → 1s2
Be2+Beryllium loses two electrons1s22s2 → 1s2
B3+Boron loses three electrons1s22s22p1 → 1s2
C4-Carbon has gained four extra electrons1s22s2 2p→ 1s22s22p6
N3-Nitrogen has gained three extra electrons1s22s2 2p→ 1s22s22p6
O2-oxygen has gained two extra electrons1s22s2 2p→ 1s22s22p6
FFluorine has gained one extra electron1s22s2 2p→ 1s22s22p6
Na+Sodium loses one electron1s22s22p63s1 → 1s22s22p6
Mg2+Magnesium loses two electrons1s22s22p63s2 → 1s22s22p6
Al3+Aluminum loses three electrons1s22s22p63s23p→ 1s22s22p6
Si4+Silicon loses four electrons1s22s22p63s23p→ 1s22s22p6
P3-Phosphorus gains three electrons1s22s22p63s23p→ 1s22s22p63s23p6
S2-Sulfur gains two electrons1s22s22p63s23p→ 1s22s22p63s23p6
ClChlorine gains one electron1s22s22p63s23p→ 1s22s22p63s23p6
K+Potassium loses one electron1s22s22p63s23p64s→ 1s22s22p63s23p6
Ca2+Calcium loses two electrons1s22s22p63s23p64s→ 1s22s22p63s23p6

Also, check –

The full electron configuration for the first 30 elements – 

Atomic numberName of the ElementsElectron configuration
1Hydrogen electron configuration1s1
2Helium electron configuration1s2
3Lithium electron configuration1s22s1
4Beryllium electron configuration1s22s2
5Boron electron configuration1s22s2 2p1
6Carbon electron configuration1s22s2 2p2
7Nitrogen electron configuration1s22s2 2p3
8Oxygen electron configuration1s22s2 2p4
9Fluorine electron configuration1s22s2 2p5
10Neon electron configuration1s22s2 2p6
11Sodium electron configuration1s22s2 2p63s1
12Magnesium electron configuration1s22s2 2p63s2
13Aluminum electron configuration1s22s2 2p63s2 3p1
14Silicon electron configuration1s22s2 2p63s2 3p2
15Phosphorus electron configuration1s22s2 2p63s2 3p3
16Sulfur electron configuration1s22s2 2p63s2 3p4
17Chlorine electron configuration1s22s2 2p63s2 3p5
18Argon electron configuration1s22s2 2p63s2 3p6
19Potassium electron configuration1s22s2 2p63s2 3p64s1
20Calcium electron configuration1s22s2 2p63s2 3p64s2
21Scandium electron configuration1s22s2 2p63s2 3p63d1 4s2
22Titanium electron configuration1s22s2 2p63s2 3p63d2 4s2
23Vanadium electron configuration1s22s2 2p63s2 3p63d3 4s2
24Chromium electron configuration1s22s2 2p63s2 3p63d5 4s1
25Manganese electron configuration1s22s2 2p63s2 3p63d5 4s2
26Iron electron configuration1s22s2 2p63s2 3p63d6 4s2
27Cobalt electron configuration1s22s2 2p63s2 3p63d7 4s2
28Nickel electron configuration1s22s2 2p63s2 3p63d8 4s2
29Copper electron configuration1s22s2 2p63s2 3p63d10 4s1
30Zinc electron configuration1s22s2 2p63s2 3p63d10 4s2

FAQ

What is an Ion electron configuration calculator?

Ion electron configuration calculator is an online tool that helps in calculating the electron configuration for anion(negative charge) and cation atoms(positive charge).

ion electron configuration calculator

How do you find electron configuration for Ions(anion and cation)?

The process of finding the electron configurations for ions, cation(positive charge) and, anion(negative charge) is very similar to neutral atoms, in the case of cation, we have to remove the electrons, and in the case of anion, we have to add the electrons to the configuration of atoms.

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