The number of electrons in any given shell can be represented by 2n2, where n = the shell number. The first shell has 2, second has 8, third has 18...
2,8,8,8
An oxygen atom has two shells. The first contains two electrons, and the second contains six electrons.
atoms try to get 10 electrons on shells around the atom. how many shells the atom has is based on the atomic number and atomic mass the atomic number determines how many shells their are.
It depends on the atomic number. If the atomic number is 5 it has five protons neutrons and electrons. The electrons make up the shells so the first shell is two electrons then the second 8 but there is only five so its an unstable atom.
Neon atom number 10: first shell (K) : 2 electrons second shell (L): 8 electrons all shells being filled up completely
3
More the number of shells in an atom, more away will be the electrons from the nucleus. Hence, weaker will be the attraction between nucleus and outermost electrons. So atom with more shells will let go their electrons easier than atoms with fewer shells.
Platinum is in the 6th period, meaning its atom has 6 energy shells. It is in Group 10 and has 78 electrons.
there are two shells of electrons in the nitrogen atom that actually have electrons in them, nitrogen has two electrons in the first shell, the S orbital, and five in the outer shell, the P orbital. this causes nitrogen to have a valence shell with five electrons.
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
the sodium atom has 3 shells where 2 electrons are in the first shell, 8 in the second and 1 in the third shell; which isn't stable..... and its symbol is Na :)
Sulfur contains atoms in three energy shells.