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The electronic configuration of an element X is:

1s² 2s² 2p6 3s2 3p5

Deduce the atomic number of X
To what group does it belong
Give two properties of the group to which the element X belong.
Identify element X by name.
Write a balanced equation to represent the reaction between the element X and hot concentrated NaOH?

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3 answers
  1. Yes

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    4. 🚩
  2. Yes

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  3. Correct answer

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    4. 🚩

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