Question

how to calcuate valency guys tell fast​

Answer 1

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Method to find Valency

If the number of electrons in the outer shell is between one to four, the compound is said to have positive valency. For compounds with electrons four, five, six, or seven, the valency is determined by subtracting the electron from eight. All noble gases except for Helium have eight electrons.

Answer 2

Answer:

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