Question

Prepare a table showing the atomic number and electronic structure of the first four elements of group 2.

Irrelevant answers will be surely reported...​

Answer 1

Explanation:

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Answer 2

First 4 elements of group 2 :

1. Beryllium (Be) :

• Atomic number : 4

• Electronic configuration : [He] 2s²

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2. Magnesium (Mg):

• Atomic number : 12

• Electronic configuration : [Ne] 3s²

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3. Calcium (Ca):

• Atomic number : 20

• Electronic configuration: [Ar] 4s²

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4. Strontium (Sr):

• Atomic number : 38

• Electronic configuration: [Kr] 5s²

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