Question

which shell electrons are called valence electrons A) first shell B) last shell C) middle shell D) 2nd shell​

Answer 1

Answer:

last shell. is the answer of this question

Answer 2

Explanation:

The electrons present in outermost shell of an atom are called as valence electrons. The valence electron of an atom take part in a chemical reaction because they have more energy than all the inner electrons. The combining capacity of an atom of an element to form chemical bond is called its valency.