The recruitment, selection, employment, and training of apprentices during their apprenticeship shall be without discrimination because of race, color, religion, national origin, or sex. Job Readiness. Applicants must be: 1  physically able to perform the work of the trade.  be prepared to work at extreme heights.
Best Answer: neutrons + protons = 23 ... Sodium Mass Number ... Na Mass Number ... Sodium (Na) Sodium has an atomic number of 11 and a mass of about 23g ... aprox ...
So, we ignore the mass of electron and state that the entire atomic mass of an atom resides in its nucleus, which constitutes of protons and neutrons. therefore, mass number= mass of total neutrons present in the atom + mass of total protons present in the atom 125 = x(1) + 50(1) ( as no. of protons= 50) x= 125-50 x=75