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

Question

Responses

only the valence electrons
only the valence electrons

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

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

only the number of protons and neutrons

Answer 1

If only an element's atomic number and weight are provided for a neutral atom, you can determine the following:

the number of protons, electrons, and neutrons.

Here's how:

• The atomic number corresponds to the number of protons in a neutral atom.
• In a neutral atom, the number of electrons is equal to the number of protons.
• The atomic weight (or atomic mass) is the sum of the protons and neutrons. To find the number of neutrons, you subtract the atomic number (number of protons) from the atomic weight (rounded to the nearest whole number).

Therefore, from the atomic number and weight, you can derive the number of protons, electrons, and neutrons.