Wiktionary (0.00 / 0 votes) Rate this definition: floater (Noun) Agent noun of float; one who floats. floater (Noun) An employee of a company who does not have fixed tasks to do but fills in wherever needed, usually when someone else is away. floater (Noun)
25Mn-55 (the naturally occurring isotope) has 25 protons, 25 electrons and 30 neutrons, 25Mn-54 has 29 neutrons instead but is not a stable isotope. 25Mn-55 (the naturally occurring isotope) has 25 protons, 25 electrons and 30 neutrons, 25Mn-54 has 29 neutrons instead but is not a stable isotope.
The number of protons in the nucleus ofan atom is the atomic number for the chemical element. A proton has a rest mass, denoted m p, of approximately 1.673 x 10 -27 kilogram (kg).A neutron is electrically neutral and has a rest mass, denoted m n, of approximately 1.675 x 10 -27 kg.he number of protons in the nucleus ofan atom is the atomic number for the chemical element. A proton has a rest mass, denoted m p, of approximately 1.673 x 10 -27 kilogram (kg).