Find the number of grams of sodium chloride required to make a 0.250 m solution containing 275.0g or water(solvent)

The total number of electrons is 14

The answer to your q it is false

Firstly, the planetary model of the atom  failed  to explain why individual atoms produce discrete  line spectra. in fact, according to rutherford's model, each individual atom should produce a  continuous  line spectrum. the second flaw to his model was the fact that electrons orbit the nucleus in a circular fashion.