If one mole is equal to 6.02 * 1023 atoms, and you have 7.00 * 1023 atoms, then how many moles do you have?

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

a electronegativity decreases beacuse the size of nucleus is bigger.