Which Group 18 element in the ground state has a maximum of 2 completely filled energy shells?

2 answers:

8 0

The answer is Neon as the electron arrangement is 2,8. But for further learning, I just want to add that there are only 8 groups. The transition metals inbetween do not count as groups. If you look at a full periodic table the first two columns and the last six columns are the eight groups :)

Hope this helps :) ~

Luda [366]4 years ago

4 0

Neon has 10 eletrons so therefore it completely fills two shells :)
Hope this helps xx

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What is (3 x 10^2) x (5 x 10^-5)

butalik [34]

Answer:

1.5*10^(-2)

Explanation:

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Which type of bond will most likely be found in HBr?

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How many atoms of O are there in 1.00 moles of CO2?

Zolol [24]

Answer:

1.204 x 10²⁴ atoms of oxygen in 1 mole of CO₂

Explanation:

1 mole of CO₂ contains 6.02 x 10²³ molecules of CO₂

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Therefore, Atoms of oxygen in 1 mole of CO2 => 6.02 x 10²³ molecules CO₂ x

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