4 years ago

When either low-mass or high-mass main sequence stars run out of hydrogen in the core, the core will contain .

SAT

2 answers:

n200080 [17]4 years ago

7 0

Helium is right on e2020

katrin [286]4 years ago

4 0

Answer:

helium

Explanation:

correct on edge earth science assignment

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considering periodic trends, valence electrons in which of the following atoms experience the greatest effective nuclear charge

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The effective nuclear charge is the difference between the atomic number an element and the shielding constant. Hence, the atom which experiences the greatest nuclear charge is Sulphur, S.

Calculating the greatest effective nuclear charge, :

$Z_{eff} = Z - S$

Z = Atomic number ; S = shielding constant

For Magnesium, Mg:

Z = 12

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$Z_{eff} = 12 - 10 = 3$

For Sulphur, , S:

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Therefore, the atom whuch experience the greatest $Z_{eff}$ is Sulphur.

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