Define atom. list the subatomic particles, describe their relative masses, charges, and positions in the atom.

Drive down any three characteristic of modern periodic table

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

The arrangement of particles is most ordered in a sample of