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Title: How may protons, neutrons and electrons would an atom of this isotope have? Post by: lfbella on Sep 8, 2012 One isotope of Hydrogen has an atomic number of one and a mass number of three. How many protons, neutrons and electrons does this isotope have?
Title: How may protons, neutrons and electrons would an atom of this isotope have? Post by: buffalo on Sep 8, 2012 atomic number =1= number of protons
atomic mass = mass of protons + mass neutrons = # protons + # neutrons {since mass of protons = mass neutrons = 1 amu} 3 = 1 + # neutrons # neutrons = 3-1 = 2 # electrons = # protons =1 for a neutral atom. so this atom has 1 proton, 2 neutrons, and 1 electron. it's name is tritium Title: How may protons, neutrons and electrons would an atom of this isotope have? Post by: buffnstuff on Sep 8, 2012 The only one I can think of is tritium:
proton = 1, and of course electron = 1, but 2 neutrons. The mass is approx. 3 u. Title: How may protons, neutrons and electrons would an atom of this isotope have? Post by: ilkat on Sep 8, 2012 There is no isotope of hydrogen with that weight.
With two neutrons its weight is 3.0160492675 If you remove its lone electron of about .0005446623 That leaves an atomic weight of about 3.0155046 This isotope is called tritium and is too heavy for your answer of 3. However, with a little rounding, it may serve. |