The change on sulfur in sulfide ion is -2 and it has the same electronic configuration as the noble gas argon
The charge of a sulfide ion that is isoelectric with its nearest noble gas (argon) is -2. This means that the sulfide ion has gained two electrons in order to have the same electron configuration as the noble gas.
They usually achieve "Noble Gas" configuration
Argon is isoelectronic with the sulfide ion.
The noble gas nearest to Phosphorus (P) is Argon (Ar).
Sulfide, S2-
negative charge with gain of electrons
They usually achieve "Noble Gas" configuration
This noble gas is argon (Ar).
Argon (Ar) is the nearest noble gas to potassium.
Chromium III is Cr3+. The roman numeral tells you the charge. Sulfide is S2-. You can figure this out from the periodic table. Sulfur needs two electrons to be like Argon, the next noble gas. When they form a compound, they combine in a ratio such that the total positive charge balances the total negative charge. 2 Cr3+ ions have a total charge of +6. 3 S2- ions have a total charge of -6. So the formula is Cr2S3.
Argon is isoelectronic with the sulfide ion.
The noble gas nearest to Phosphorus (P) is Argon (Ar).
Sulfide, S2-
charge on the ion formed from an alkaline earth metal is +2 because it has 2 e- in its outer valence shell which it can lose to attain nearest noble gas configuration.
Group-17 is the nearest neighbor to the noble gases in the periodic table.
Yes it is. Argon (atomic number 18) is the noble gas that is nearest to calcium (atomic number 20)
negative charge with gain of electrons
This gas is neon.