Question

Symbol atomic number electronic configuration and valency

Answer 1

Answer:

a symbol is the representative of elements.

example:sodium (Na). it is either represented in English or Latin word

Explanation:

atomic number is the number of atoms present in one element.

example:Sodium (Na)

atomic number is 11

valency: valency is the number of electrons present at the last shell of an atom.

example:Sodium ( Na)

valency is 1.