Chemistry, asked by jagadeeshmahima, 10 months ago

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Answered by dewanganajay1875
1

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Answered by shivpatelmsd3008
1

Explanation:

  1. calcium has 2 electrons on its 1st shell, 8 electrons on its 2nd shell,another 8 electrons of 3rd shell and 2 electrons on its valence shell.
  2. sulphur ha 2 electrons on its 1st shell , all are same as in calcium but it has 6 valence elcectrons.
  3. oxygen has 6 electrons on its valence shell.

upper photo is answer of 4 one

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