If only an element’s atomic number and weight are provided, what other atomic information can be determined for a neutral atom?(1 point)

Question

Responses

the number of protons, electrons and neutrons
the number of protons, electrons and neutrons

only the valence electrons
only the valence electrons

only the number of protons and electrons
only the number of protons and electrons

only the number of protons and neutrons

Answer 1

The correct response is:

the number of protons, electrons and neutrons

For a neutral atom, the number of protons is equal to the atomic number. The atomic weight (or atomic mass) can give you an approximate number of neutrons when you subtract the atomic number from the atomic weight (after adjusting for any isotopes). Thus, with atomic number and weight, you can determine the number of protons, electrons (equal to protons in a neutral atom), and neutrons (approximately).