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Sever21 [200]
3 years ago
5

Isotopes with unstable nuclei are_______and are called _______.

Chemistry
1 answer:
Inga [223]3 years ago
8 0

Answer:

Radioactive and are often called radioisotopes

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How many protons, electrons, and neutrons does the following isotope contain? ^{18} \text{F}^{-} 18 F −
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Isotope ¹⁸F⁻ contains:
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Fluorine has a<span>tomic number Z = 9 (total number of protons).
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In element number of electrons and protons are the same, because element has neutral charge, but because in this example, fluorine is anion with negative charge, it has one electron more.
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Mention 10 products made from crude oil​
garri49 [273]

Answer:

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A U.S 42-gallon barrel of crude oil yields about 45 gallons of petroleum products in U.S. refineries because of refinery processing gain. This increase in volume is similar to what happens to popcorn when it is popped."

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4 0
2 years ago
What part of the atom contains the most space: the nucleus or the energy levels? Why?
Anarel [89]

Answer:

I don't know 100% but im pretty sure its electrons, if im wrong im really sorry let me know in the comments ill change it

explanation

the nucleus has more weight but its more compact but the electrons are spread apart circling the nucleus and therefor take up more space

3 0
3 years ago
Picture shown!<br><br><br> What is the melting point of this substance at 1 ATM of pressure?
Oksana_A [137]

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The melting point of this substance at 1 ATM of pressure is 110°.

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