Statement (A). The electrons present in outermost shell are called valence electrons. Statement (B) ' Generally, the electrons of inner shell do not participate in chemical bondiefR I VGE. WORKSHERT Statement (C) The The valence electrons are represented by Lewis dot symbols. 6. Statement (A). The elements like H, Li try to get two electrons in their outermost shell. I Statement (B) The elements like $\mathrm{Na},\mathrm{Cl}$ try to get eight electrons in their outermost shell. Statement (C)? According to Lewis theory the number of dots around the symbol represt number of valence electrons. IV. Assertion and Reason type questions :

1. Both $A$ and $R$ are correct and $R$ is the correct explanation of $A$
2. Both $A$ and $R$ are correct and $R$ is not the correct explanation of $A$
3. $A$ is correct, $R$ is incorrect
4. $\mathrm{A}$ is incorrect, $\mathrm{R}$ is correct