Electron configuration of helium: 1s2
The orbital notation for thallium is [Xe}4f14.5d10.6s2.6p1.
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How many atoms / electron clouds does helium have ?
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Electron Notation is: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2 Noble Gas notation is: [Ar] 4s2 3d10 4p2 Orbital Notation would be with the up & down arrow in boxes for each orbital.
Orbital Notation is a way to show how many electrons are in an orbital for a given element.
1s2 + 2s2 + 2p6 + 3s2 + 3p4 = sulfur's orbital notation
The noble gas notation starts for elements after helium. Helium has no noble gas notation. Its electronic configuration is 1s2
The electron configuration of helium is 1s2. This means that there are two electrons in the 1s orbital in helium.s stands for the orbital in which the electrons are present
[Rn]7s2
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