(1) how do you determine the valency of an element ? (2) Explain the t

1.	(1) how do you determine the valency of an element ? (2) Explain the term variable valency with the help of an element .who can give currect ans l will mark BRAINLIST and thanks 20+
Answer» Answer: 1. 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. 2.Certain elements combine with other atoms, DONATING, accepting or sharing electrons in DIFFERENT proportions depending on the nature of the REACTION. For EXAMPLE, iron combines with oxygen to form ferrous oxide as well as ferric oxide. This is termed variable valency.

(1) how do you determine the valency of an element ? (2) Explain the term variable valency with the help of an element .who can give currect ans l will mark BRAINLIST and thanks 20+

Answer»

Answer:

1. 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.

2.Certain elements combine with other atoms, DONATING, accepting or sharing electrons in DIFFERENT proportions depending on the nature of the REACTION. For EXAMPLE, iron combines with oxygen to form ferrous oxide as well as ferric oxide. This is termed variable valency.

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