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deff fn [24]
3 years ago
5

What is the electron configuration for sulfur? A. 1s2 2s2 2p6 3s2 3p4 B. 1s2 1p6 2s2 2p6 3s2 C. 1s2 2s2 2p6 3s2 3p3 4s1 D. 1s2 2

s2 2p6 3p1 3d5

Chemistry
2 answers:
Mnenie [13.5K]3 years ago
4 0
A.
{1s}^{2}  {2s}^{2}  {2p}^{6}  {3s}^{2}  {3p}^{4}

3241004551 [841]3 years ago
3 0
Sulfur has two filled energy levels and six electrons on the third energy level. The corresponding electron configuration is A.
B is incorrect because there are no p orbitals at the first energy level, ie, no 1p orbitals. C is incorrect because the 4s1 electron would spontaneously drop into the 3p orbitals. D is incorrect because the 3d electrons would spontaneously drop into the 3p orbitals.
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An extra-strength aspirin contains 0.500 g of aspirin. how many grains is this? (1grain=64.8mg)
Snowcat [4.5K]

By unit conversion, the aspirin contains 7.72 grains.

We need to know about unit conversion to solve this problem. The unit conversion can be used to convert a unit to another unit. It can be defined as

a = xb

where a is unit a, b is unit b and x is the constant of conversion.

From the question above, we know that

m = 0.5 gram

unit conversion

(1 grain = 64.8 mg)

Convert the unit conversion to 1 mg

1 grain = 64.8 mg

1/64.8 grain = 64.8/64.8 mg

1 mg = 1/64.8 grain

Convert the aspirin mass to grain

m = 0.500 g

m = 0.5 x 10³ mg

m = 0.5 x 10³ x 1/64.8 grain

m = 7.72 grain

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We know the sun is primarily made from hydrogen and helium on the basis of its spectrum.

<h3>What is Sun's spectrum?</h3>

Sun's spectrum refers to the light of the Sun whose wavelength spectra can be used to identify atomic composition.

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In conclusion, we know the sun is primarily made from hydrogen and helium on the basis of its spectrum.

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