What particle contains 11 protons, 10 electrons and 7 neutrons? Determine its composition, charge, relative molecular weight.

What 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

An atom consists of a nucleus around which electrons revolve. It is electrically neutral because the number of protons in the nucleus (p +) is equal to the number of electrons (e-). The relative mass of an atom is the sum of the number of protons and neutrons, since the mass of an electron is so small that it can be neglected:
– a nucleus of 11 protons and 7 neutrons, so Ar = 18;
– there are 10 electrons, which means that this is an ion whose charge is +1 (the number of protons is greater than the number of electrons);
– in chemical reactions, the nuclear charge remains unchanged, that is, it is a sodium ion;
– sodium chloride – NaCL, sodium hydroxide – NaOH.