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kipiarov [429]
2 years ago
9

What do you call a small rocky or metallic object that has crashed on the surface of the Earth?

Chemistry
1 answer:
Sedbober [7]2 years ago
3 0
The answer is Meteorite
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Intrusive igneous rocks _____. form from confining pressure cool quickly on Earth's surface cool slowly beneath Earth's surface
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Answer:cool slowly beneath Earths surface

Explanation:

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How is petrol separated from the mixture of hydrocarbons in crude oil?
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By doing fractional distillation
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Which of these statements is true about photons?
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Answer: it’s a I believe

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What is the electron configuration for<br> 08<br> 16
Elis [28]

The electron configuration for Oxygen : [He] 2s²2p⁴

<h3>Further explanation</h3>

Writing electron configurations starts from the lowest to the highest sub-shell energy level. There are 4 sub-shells in the shell of an atom, namely s, p, d, and f. The maximum number of electrons for each sub-shell is  

• s: 2 electrons  

• p: 6 electrons  

• d: 10 electrons and  

• f: 14 electrons  

Charging electrons in the sub-shell uses the following sequence:  

<em>1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.  </em>

The element is Oxgen, with symbol O, and :

the atomic number=8=number of electron

the atomic mass=16

The electron configuration based on the number of electrons(for Oxygen=8), so the configuration :

\tt _8^{16}O:1s^22s^22p^4 or we can write with noble gas [He] 2s²2p⁴

3 0
2 years ago
Why would an atom become an ion?
crimeas [40]

Answer:

c

Explanation: correct me if im wrong

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