Question

how to find valency answer fast tody is my exam class 9​

Answer 1

Explanation:

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:

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..!!

Examples: :

:Name of Element SodiumSymbol Na

Neutrons 12

Electrons 11

Electronic configuration K L M N 2 8 1

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