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omeli [17]
2 years ago
14

How many neutrons would be in an atom of Selenium if the mass number for this particular isotope is Se-80?

Chemistry
1 answer:
EleoNora [17]2 years ago
6 0

Answer:2

Explanation:

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Convert -32 F into K
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a que grupo en la tabla periodica pertenece el magnesio, potasio, calcio, azufre, oxigeno y el cloro?
ladessa [460]

Answer:

Group 2A — The Alkaline Earth Metals. Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

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Silver is a white metal that is an excellent conductor. Silver tarnishes when exposed to air and light. The density of silver is
Stells [14]

Answer:

c tarnishes in air

Explanation:

After silver has been exposed to air that contains sulphur gases, discoloration would occur. there would be darkening that is caused by the reaction with gases.When any silver object tarnishes, it brings about a disfiguring of that object. Hydrogen sulphide would be needed for this to happen. silver sulphide is black and a if a thin layer should form on any surface, it ill darken it. This  is what we refer to as tarnishing.

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3 years ago
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How does the electron-cloud model describe electrons?
Natali5045456 [20]

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***If you found my answer helpful, please give me the brainliest, please give a nice rating, and the thanks ( heart icon :) ***

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In which reaction is it possible for nitrogen to change into carbon?
sertanlavr [38]
C. ionization reaction...
THANKS!!
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