Selina Solutions Class 9 Chemistry Solutions for Exercise 5C in Chapter 5 - Chapter 5 The Periodic Table

Question 6 Exercise 5C

(a) How do alkaline earth metals occur in nature?

(b) Write the electronic configuration of the first two alkaline earth metals.

a) In nature, earth metals occur in the combined state as they are very reactive metals.

b)

\begin{array}{l} 4 \mathrm{Be}: 1=2 s^{2} \\ 12 \mathrm{Mg} \cdot 1 \mathrm{s}^{2} 2 \mathrm{s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{s} \end{array}

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