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Gloryreak3728
11.12.2020 •
Chemistry
Which of the following are anions? Check all that apply.
a
Fluorine
b
Phosphorus
c
Lithium
d
Oxygen
e
Sodium
f
Lead
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Ответ:
For F, I’m pretty sure it can be either or because it can either lose 4 electrons or gain 4 electrons. So I recommend looking it up.
Hope this helps :)
Ответ:
17
Explanation:
The number of elementary particles in the atom X = 52
The mass number of atom X = 35
The information required = The atomic number
The number elementary particles of the atom = The number of protons + The number of neutrons + The number of electrons
The mass number of an atom = The number of protons + The number of neutrons
∴ The number of electrons = The number elementary particles of the atom - The number elementary particles of the atom
The number of electrons = 52 - 35 = 17
In a neutral atom, the number of protons = The number of electrons = 17
The atomic number of atom, X = The number of protons in X = 17