Question

$\huge \mathfrak \red{questions}$
1: If K and L shells of an atom are full, then what would be the total number of electrons in the atom?

2: How will you find the valency of chlorine, sulphur and magnesium?

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Answer 1

Questions:-

1: If K and L shells of an atom are full, then what would be the total number of electrons in the atom?

The maximum number of electrons that can be occupied in the K and L-shells of an atom are 2 and 8 respectively. Therefore, if the K and L-shells of an atom are full, then the total number of electrons in the atom would be (2 + 8) = 10 electrons.

2: How will you find the valency of chlorine, sulphur and magnesium?

• So valency of Mg is 2 because its group is 2 and contains two valence electrons.
• Valency of sulphur is 8−6=2 as sulphur is VIA group.
• Valency of chlorine is 8−7=1 as chlorine is VIIA group. Was this answer helpful?

Explanation:

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Answer 2

$\huge \mathfrak \red{ Solution }$

● Explain : -

• 1 : - The maximum number of electrons that can be occupied in the K and L-shells of an atom are 2 and 8 respectively. Therefore, if the K and L-shells of an atom are full, then the total number of electrons in the atom would be (2 + 8) = 10 electrons...

• 2 : - So valency of Mg is 2 because its group is 2 and contains two valence electrons.

• Valency of sulphur is 8−6=2 as sulphur is VIA group.

• Valency of chlorine is 8−7=1 as chlorine is VIIA group. Was this answer helpful?

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