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Margaret [11]
2 years ago
8

Which elements have 8 valence electrons?

Chemistry
2 answers:
Darina [25.2K]2 years ago
6 0
Any element in group 18 has eight valence electrons (except for helium, which has a total of just two electrons). Examples include neon (Ne), argon (Ar), and krypton (Kr). if that’s what u mean
notka56 [123]2 years ago
6 0

Answer:

Any element in group 18 has eight valence electrons (except for helium, which has a total of just two electrons). Examples include neon (Ne), argon (Ar), and krypton (Kr).

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Answer:

60.9 Kelvin

Explanation: First, write out everything that you know. You are tring to find the temperature, so the temperature will be represented by x.

Pressure (P)= 4.5 atm

Volume (V)= 3L

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Gas Consant (R)= 0.0821, if the pressure is in atm, that means r is 0.0821

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(4.5)(3) = (2.7)(0.821)x    

x= 60.9

Now you have your temperature! It is 60.9 in Kelvin.

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