2-8-8 or 1s2 2s2 2p6 3s2 3p6
How many atoms / electron clouds does helium have ?
The Specific orbital the electron is in
An electron orbital describes the probable location of an electron within an atom. It represents the three-dimensional region where an electron is most likely to be found, based on the electron's energy level, shape, and orientation within the atom. Each orbital can hold a maximum of two electrons with opposite spins.
Argon has completely filled valence orbitals and hence is unreactive. Sodium has one valence electron. If sodium loses this electron it will attain the stable electron configuration of the nearest noble gas (argon) and hence is reactive.
one electron in the 5s orbital
The electron configuration of argon is [Ne] 3s2 3p6, where [Ne] represents the electron configuration of neon. Argon has 18 electrons, with 2 electrons in the 3s orbital and 6 electrons in the 3p orbital.
The electron configuration of argon is 1s2 2s2 2p6 3s2 3p6. This notation indicates the number of electrons present in each energy level and orbital in an atom of argon.
The electron orbital pattern of boron is 1s2 2s2 2p1. This means it has 2 electrons in the 1s orbital, 2 electrons in the 2s orbital, and 1 electron in the 2p orbital.
The ionisation energy depends on the orbital from which the electron is removed and also the distance of the orbital from the nucleus. In the case of Helium, the electron is removed from 1s orbital whereas in the case of argon it is from 3p orbital. As 1s is closer to the nucleus, the force of attraction experience by these electrons is higher and hence helium will have higher 1st ionisation energy.
Ca
There is merely one unpaired electron in Potassium. The electron configuration of potassium is [Ar]4s^1. This means that potassium has all the electrons of argon, plus one more in the 4s orbital. All the electrons of argon are paired, so the one electron in the 4s orbital is the only unpaired electron.
The electronic configuration of Argon is [Ne] 3s2 3p6. This means it has 18 electrons arranged in energy levels around the nucleus, with the first two electrons in the 3s orbital and the next six electrons in the 3p orbital.
Yes, argon does have an atomic radius. The atomic radius is the distance from the nucleus of an atom to the outermost electron orbital. In the case of argon, its atomic radius is about 0.98 angstroms.
An electron in a 2s orbital is on average closer to the nucleus.
I assume you mean that orbital 1 has 2 electrons, orbital 2 has 8 and orbital 3 has 8. The electron configuration of this is 1s2 2s2 2p6 3s2 3p6 (2+2+6+2+6=18) 18 is the atomic number of 18Ar or Argon.
Argon has 18 electrons in its electron cloud.
How many atoms / electron clouds does helium have ?