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

only the number of protons and neutrons
only the number of protons and neutrons

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

Answer 1

The correct response is:

the number of protons, electrons and neutrons

In a neutral atom, the number of protons equals the number of electrons. The atomic weight (or atomic mass) can be used, along with the atomic number (which gives the number of protons), to determine the number of neutrons by using the formula:

Number of neutrons = Atomic weight (rounded to nearest whole number) - Atomic number.