The modern-day quantum model of the atom is better than John Dalton’s model because it:. a) is easier to understand. b) is a more recent theory. c) can be represented in two dimensions. d) answers many questions about atoms.

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

Electrons are emitted