The noble gas notation starts for elements after helium. Helium has no noble gas notation. Its electronic configuration is 1s2
The isotopic notation for helium-4 is ^4He. This notation denotes the element's atomic number and mass number, which for helium-4 are 2 (atomic number) and 4 (mass number) respectively.
it's an up arrow and down arrow next to each other, beneath that it says 1s2.
There is no boble gas notation for hydrogen and helium. The noble gas notation starts for elements after helium. 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 forward.
The noble gas notation of carbon is [He]2s^2 2p^2, where [He] represents the electron configuration of helium. This notation indicates that carbon has a total of 6 electrons, with 2 in the 2s orbital and 4 in the 2p orbital.
1390000
14983.2 in scientific notation is1.49832x10^4
1.26*102
5.72059 x 102
It is: 1.17*104
It is: 1.2065*10^1
It is: 6.66*10^2
It is: 4.4*10^3
It is: 1.315*10^7
It is: 9.01*10^-5
It is: 1.0*10^3
No