Read the Assertion and Reason below and choose the correct option. — Atomic Structure Chemistry Question

💡 Solution & Explanation

Statement I is correct: Helium has the configuration $1s^2$ and Beryllium has $1s^2 2s^2$, both ending in $ns^2$. Statement II is incorrect: While Helium is a noble gas and chemically inert, Beryllium is an alkaline earth metal and is reactive. Therefore, correct answer is C.