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Which is the bigger atom, argon or chlorine?

Answer 1

It is..........?

As a physical scientist, you should consult the data. See this site. The atomic radius of #Ar# is #71xx10^-12*m#; that of atomic chlorine is #79xx10^-12*m#. And this illustrates a general Periodic Trend: atomic size decreases across a Period from left to right as we face the Table; it INCREASES down a Group.

The provided data clearly shows how ineffectively incomplete electronic shells shield the nuclear charge.

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Answer 2

Kai Bowman

Argon is the bigger atom compared to chlorine.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.