Solution:
Hydrogen atom gains one electrons and Li atom lose one electron to get He electronic configuration to attains stable.Na atom lose one electron to get Ne configuration
Valence electrons are represented by Lewis dots.
Statement (A) : The elements like H, Li try to get two electrons in their outermost shell.
Statement (B) : The elements like Na, Cl try to get eight electrons in their outermost shell.
Statement (C) : According to Lewis theory the number of dots around the symbol represents the
Na atom lose one electron to get Ne configuration
Valence electrons are represented by Lewis dots.