Which particle contains 11 protons, 10 electrons and 7 neutrons? Determine its composition, charge

Which particle contains 11 protons, 10 electrons and 7 neutrons? Determine its composition, charge, relative molecular weight. Write the formulas for the two compounds that contain this particle.

1. The number of protons is 11, which means the charge of the particle nucleus is +11.
2. The number of electrons is 10, this is less numerically than protons in the nucleus, which means this is an ion with a charge of +1, because the electrons are negatively charged.
From this we conclude that this particle is a Na (+) cation.
3. The mass of an atom or ion is the sum of the number of protons and neutrons, which means Ar (Na +) = 11 + 7 = 18.
4. Sodium cation is a part of salts, for example: NaCL, Na2SO4. Also, in the composition of sodium oxide and its hydroxide: Na2O, NaOH.



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