Question

give reason: sulphur exhibits negative valency



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Answer 1

Answer:

because sulphur gains electron and by gaining the charge becomes negative

Answer 2

Answer:

Sulphur atomic number is 16.

Elements fill their valence shells to reach in octet or duplet state, in simple words to gain the number of electrons equal to their nearest noble gases( like He, Ne, Ar, and so on)

Argon is the nearest noble gas element to sulphur, as its atomic number is 18.

(# Atomic number is the number of protons or electrons in an element when an element loses or gains electrons, it no longer is called an element. It is called as an ion. Element with positive charge or lost its elctrons is called a cation and element with negative charge or gained electrons is called an anion.)

Hence, to reach the octet state, Suplhur has to gain 2 electrons,( to get its number to be 18) and by gaining electrons, it gets a negative charge or becomes an anion.

In short,

Sulphur exhibts a negative valency as it gains electrons to reach the octet state.

Hope it helps!