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KatRina [158]
4 years ago
15

Which of the following groups contain three elements with stable electron configurations? A. calcium, krypton, argon B. argon, n

eon, xenon C. xenon, neon, boron D. helium, xenon, carbon
Physics
2 answers:
patriot [66]4 years ago
8 0

Answer: B. argon, neon, xeno

Explanation:

All these elements listed here are part of the group 18 of the periodic table, which is the last group on the right. All these elements are also called 'noble gases'. Their main property is that they have their last energy shell completely filled with electrons: so they do not easily give/receive electrons to make bonds with other elements. For this reason, these elements have the most stable electron configuration, and they do not react with other elements.

guapka [62]4 years ago
6 0
I think the answer would be b
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Answer:

R = 24.3 m

Explanation:

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here we know that

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now we have

5500 = \sqrt{\frac{(6.6 \times 10^{-11})M}{4.48 \times 10^6 + 6.30\times 10^5}}

M = 2.34 \times 10^24 kg

now acceleration due to gravity of planet is given as

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a = \frac{(6.6 \times 10^{-11})(2.34 \times 10^{24})}{(4.48\times 10^6)^2}

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4 years ago
What are the si units
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Answer:

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Explanation:

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6 0
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6 0
3 years ago
The measurement 0.025563 g should be reported as?
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