No, Nobelium, to the honor of Alfred Nobel, not naturally occurring, instable isotope of the 'trans-uranic' actinides
the known table of elements stops at 118 protons in an atom max. so the question is probably which atom has >102< protons which is radioactive Nobelium at its most stable isotope. 102/256 No
Molecules. However it is surprising when you consider a truly heavy element how many lighter ones are needed to "win" the argument. Consider nobelium-259 it has 259 protons and neutrons and 102 electrons. Whereas heptane C7H16 has 100 protons and neutrons and 58 electrons so quite a way short! It takes an alkane of around C21H44 to get close.
Nobelium has 102 protons and electrons.
Nobelium, with the chemical symbol No, is the chemical element with the atomic number 102.
The Atomic Mass of an element is the numerical average of all the masses of the naturally occurring isotopes of that element proportionately. Man made elements do not count in supposedly. IE: If we have an element with atomic weight 100 and we have an isotope of that element with atomic weight 102 and if they occurred equally in nature then the Atomic Mass would be 101.
157; you figure that out by taking the atomic mass (259) and subtract it by the # of protons (102) and the answer is the # of neutrons. ( the atomic #, # of protons, and # of electrons are always the same # 102 ). But each isotope of nobelium has a different number of neutrons, depending on the atomic mass.
41 apex
the known table of elements stops at 118 protons in an atom max. so the question is probably which atom has >102< protons which is radioactive Nobelium at its most stable isotope. 102/256 No
99.9% of an atom's mass is concentrated in the nucleus, with protons and neutrons having almost the same mass, with neutrons being slightly higher. So your question would be, 'What atom has the most protons and neutrons combined?' And that answer is Nobelium. Nobelium has 102 protons and 160 neutrons which makes it the most 'massive' atomic particle, even more so then Lawrencium which has 103 protons but only 159 neutrons. Of course, in a few months, we could have a new, more massive element.
The element with an atomic number of 46 is palladium; its mass number, 102, indicates that this atom is contains a disproportionate number of neutrons to protons (56/46), making it a lighter isotope (Pd102) that represents only 1.02% of all natural palladium.
Molecules. However it is surprising when you consider a truly heavy element how many lighter ones are needed to "win" the argument. Consider nobelium-259 it has 259 protons and neutrons and 102 electrons. Whereas heptane C7H16 has 100 protons and neutrons and 58 electrons so quite a way short! It takes an alkane of around C21H44 to get close.
Rhenium has 75 protons, 75 electrons and 111 neutrons.The number of protons is equal to the number of electrons.Neutrons can be calculated by subtracting the number of protons from the atomic weight.In this case atomic number is 186 ==> the nr of neutrons = 186-75=111.
Nobelium has 102 protons and electrons.
Nobelium has 102 protons.
For each isotope the number of neutrons is different.Number of neutrons = Mass number of an No isotope - 102
For each isotope the number of neutrons is different.Number of neutrons = Mass number of an No isotope - 102
102 = 100