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Chemistry Regents January 2008 - Question 36 |
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Written by The Chemistry Wizard
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(2) neon, only
Although argon and neon are in the same column of the periodic table, they have different electron configurations.
The configuration of argon is : 1s^2 2s^2 2p^6 3s^2 3p^6
And the configuration of neon is: 1s^2 2s^2 2p^6
This question tests your knowledge in the difference between electron configuration and valence electrons (in this case argon and neon are the same). Remember that the ions formed by NaF are more similar to neon (and located between Na and F on the periodic table) than they are to argon.
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