2017 · Q42
The chemical properties of an element depend upon
General KnowledgeChemistry
- Athe number of isotopes of the element
- Bthe mass number of the element
- Cthe total number of neutrons in the element
- Dthe number of electrons in the outermost shell of the element
Explanation
Chemical properties are determined by the valence electrons — those in the outermost shell. The number of isotopes, the mass number, and the total neutron count do not drive chemical behaviour. Hence D.