) An atom of an element A has atomic number 12. On this basis of its electric
configuration, answer the following questions.
1. To which group does it belong?
2. Is it a metal or non - metal?
3. Write the ionic equation to show the formation of an ion of the element A.
4. What type of bond will be formed when it reacts with oxygen?
5. State the formula of the chloride of the given metal.
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Answer:
1. ALKALINE EARTH METAL
2. METAL
3. Mg²+
4. IONIC
5. Mg + Cl2 —> MgCl2
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