The negative (oxygen) end of water is attracted to the positive sodium ion in the salt, extracts it from the lattice and more water molecules surround it (i.e. dissolve it). The same is true for the positive (hydrogen) end of water and the negative chloride ion in the salt.
According to nitrogen's electron configuration table, an atom of nitrogen contains two electrons in its first energy level (both in the s sub-shell) and five electrons in its second energy level (two in the s sub-shell and three in the p sub-shell). A more accurate Bohr model of a nitrogen atom could look like this: In the refined Bohr model, a nitrogen atom has a central nucleus, composed of seven protons and seven neutrons, surrounded by seven electrons.
One model of the atom states that instead of electrons being tiny particles in orbits, they are in the form of an electron cloud in shells around the nucleus.This model is due to the Uncertainty Principle and is useful in Quantum Mechanics.he Bohr model or solar system model of the atom is that the atom is like a tiny solar system, with the nucleus in the center and electrons rotating around the nucleus in orbits, similar to how the planets rotate around the Sun.