The transition of an electron from an excited energy state to the ground state always results in

1 answer:

3 0

The transition of an electron from an excited energy state to the ground state always results in B. the emission of electromagnetic radiation.

The electron is going from a high-energy state to one of low energy, so it emits this excess energy as electromagnetic radiation. This may be visible light, but it may also not be visible to our eyes.

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Koja od navedenih atomskih orbitala nije moguća? a) 2d b) 3s c) 4p d) 5f

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Answer:

Explanation:

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How many chlorine atoms are there in 12.2 g of ccl4? How many chlorine atoms are there in 12.2 of ? 4.77×1022 atoms?

mash [69]

Answer:- $1.91*10^2^3Cl$ atoms.

Solution:- We have been given the grams of carbon tetrachloride and asked to calculate the number of atoms of chlorine. It is a three step conversion problem. In the first we convert the grams of carbon tetrachloride to moles of it. In second step we convert moles of carbon tetrachloride to moles of chlorine and in the third step we convert the moles of chlorine to atoms of chlorine.

For grams to mole conversion we need the molar mass of the compound. Molar mass of carbon tetrachloride is 153.82 grams per mol. If we look at the formula of carbon tetrachloride then four chlorine are present in it. It means 1 mol of carbon tetrachloride has four moles of chlorine. The calculations are as follows:

$12.2gCCl_4(\frac{1molCCl_4}{153.82gCCl_4})(\frac{4molCl}{1molCCl_4})(\frac{6.02*10^2^3Clatoms}{1molCl})$