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zalisa [80]
4 years ago
5

Which element has the highest first ionization energy?

Chemistry
1 answer:
Greeley [361]4 years ago
3 0

Answer:

Helium

Explanation: The ionization energy decreases from the top to bottom in groups. And increases from left to the right across a period. Therefor Helium has tge largest first ionization energy, while francium has one of the lowest.

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I NEED HELP PLEASE!!!!!
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A gaseous mixture contains 443.0 Torr H 2 ( g ) , 369.9 Torr N 2 ( g ) , and 82.7 Torr Ar ( g ) . Calculate the mole fraction, χ
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Answer:

χH₂ = 0.4946

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χAr = pAr / P = 82.7 Torr/895.6 Torr = 0.0923

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What happens after excitation in spectroscopy.<br>​
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