6. a. Why do an atom of argon have zero valency. Explain using electronic configuration of argon. . b. Define valency by taking example of magnesium, and oxygen.

6. a. Why do an atom of argon have zero valency. Explain using electro

1.	6. a. Why do an atom of argon have zero valency. Explain using electronic configuration of argon. . b. Define valency by taking example of magnesium, and oxygen.
Answer» tion:A. Answer. bcoz argon has stable electronic configuration. they neither loose their electrons nor do they gain,and also this has a completely filled outer shell so this doesnt require any more electrons ie. -2 in k-shell,8-in L shell,8in MSHELL, so the valency is zero.B. Answer. Valency is defined as the number of electron which are required to FULL fill the last orbit of atom by LOSS and gain of electron is equal to the valency and it is CALLED valency. here the MG easily lose the 2 electrons so its valency is 2 . and the oxygen easily take the 2 electrons so its valency is also 2

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6. a. Why do an atom of argon have zero valency. Explain using electronic configuration of argon. . b. Define valency by taking example of magnesium, and oxygen. ​

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6. a. Why do an atom of argon have zero valency. Explain using electronic configuration of argon. . b. Define valency by taking example of magnesium, and oxygen.