Question

part c what determines the types of chemical reactions that an atom participates in? the number of electrons in the outermost electron shell the number of protons it contains the number of electrons in the innermost electron shell its atomic mass its atomic number

Explanation:

In chemistry (a subfield of Natural Science), the chemical reactions an atom participates in are determined by the number of electrons in its outermost (valence) electron shell. Valence electrons are involved in forming chemical bonds. The number of protons determines the element (atomic number), inner - shell electrons are not involved in bonding, and atomic mass is related to protons and neutrons, not directly to chemical reactivity.

Answer:

the number of electrons in the outermost electron shell