The noble gas notation is a notation formed as a result of the electron configuration notation being used in conjunction with noble gases. The noble gas preceding the element in question is written then the electron configuration is continued from that point onwards. The notation is shorter to write and makes it easier to identify elements. The noble gas notation starts for elements after helium.
For example, the electronic configuration of carbon is 1s2 2s2 2p2, whereas its noble gas notation is [He] 2s2 2p2.
explain
Hydrogen electron configuration will be 1s1.
The electron configuration for germanium is [Ar]3d10.4s2.4p2.
The electron configuration of zirconium is: [Kr]5s24d2
Al3+
explain
because of the electron configuration are different
The electron configuration for oxygen is [He]2s2.2p4.The electron configuration for sulfur is [Ne]3s2.3p4.
The electron configuration for beryllium, Be, is 1s22s2.
A cation has a depleted electron configuration.
The electronic configuration of einsteinium is: [Rn]5f11.7s2.
The electron configuration of francium is [Rn]7s1.
Hydrogen electron configuration will be 1s1.
Uranium electron configuration: [Rn]5f36d17s2
The electron configuration of beryllium is 1s2 2s2.
The electron configuration of boron is [He]2s2.2p1.
The electron configuration for germanium is [Ar]3d10.4s2.4p2.