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What is the valency of neon and argon?
Neon has a valency of 0 because it already has a full outer shell of electrons with 8 valence electrons. Argon also has a valency of 0 because it has a full outer shell with 8 valence electrons.
Why do helium neon argon have a 0 valency?
Helium, neon, and argon have a full outer electron shell, making them stable and chemically non-reactive. They each have a valency of 0 because they do not need to gain, lose, or share electrons to attain a stable electron configuration.
What is the valence electron configuration of argon?
The valence electron configuration of argon is 3s2 3p6, since it belongs to group 18 (Noble gases) and has a full outer shell of electrons.
Why is the valency of chlorine one?
Chlorine has a valency of one because it has seven valence electrons in its outer shell. By gaining one electron, chlorine can achieve a stable electron configuration similar to that of a noble gas, specifically argon, which has a full outer shell with eight electrons.
Why do helium neon and argon have a zero valency?
Helium, neon, and argon have a zero valency because they have a full outer electron shell (valence shell). This makes them stable and unreactive because they do not need to gain, lose, or share electrons to achieve a full valence shell. Since they already have a complete set of electrons, they do not form chemical bonds easily.
