Important Question Related To Group 2 Element Compound

graph TD; A[Important question related to Group 2 element compound]; A --> B[Question 1]; A --> C[Question 2]; A --> D[Question 3]; B --> E[Sub-question 1.1]; B --> F[Sub-question 1.2]; C --> G[Sub-question 2.1]; C --> H[Sub-question 2.2]; D --> I[Sub-question 3.1]; D --> J[Sub-question 3.2];