Question

1. the number of protons in one atom of an element determines the atom’s______, and the number of electrons determines ______ of an element.

Explanation:

In Chemistry (a subfield of Natural Science), the number of protons in an atom's nucleus is defined as the atomic number, which identifies the element. The number of electrons (in a neutral atom, equal to protons, but in ions, different) determines the chemical properties of an element because electrons are involved in chemical bonding and reactions. For a neutral atom, the electron configuration (dictated by the number of electrons) influences how the atom interacts with others, like forming bonds, reacting with substances, etc. So the first blank is "atomic number" and the second is related to chemical properties (or more specifically, in a neutral atom context, the charge if we consider ions, but primarily chemical properties as electrons drive reactions).

Answer:

The number of protons in one atom of an element determines the atom’s atomic number, and the number of electrons determines the chemical properties (or charge, for ions) of an element. (For a more precise fill - in - the - blank answer focusing on basic concepts: first blank - atomic number; second blank - the chemical properties (since electrons are involved in bonding and reactions))