So 205 is the most common
== == == ==
The natural isotopes of lead are the following:
* 208Pb: 52,4 %
* 206Pb: 24,1 %
* 207Pb: 22,1 %
* 204Pb: 1,4 %
* 210Pb: traces
Natural isotopes of lead are: Pb-204 to Pb-208 and Pb-210.
Pb-204, which accounts for 52.4% of lead.
Pb-208
208
Lead has: 82 Protons 82 Neutrons 125 Electrons
The most common isotope of Neon has 10 neutrons.
3
If you look on the periodic table, you will find that the atomic number for lead is 82. This means that there will always be 82 protons. Next, assuming that there are not ions, the number of elections is also 82. Finally, you can see that the mass number of Pb is 207. 207-82=125 so there are 125 neutrons if you are referring to the most common isotope.
There are several isotopes of Helium and they have different numbers of neutrons. The simplest and most common is Helium-4 which has two neutrons
Lead has: 82 Protons 82 Neutrons 125 Electrons
It depends on the isotope (atoms of lead with different numbers of neutrons). There are three stable isotopes of lead:206Pb has 124 neutrons207Pb has 125 neutrons208Pb has 126 neutrons
146 neutrons.
In the most common isotope of silicon, there are 14 neutrons.
Lead has 125 Neutrons in each normal atom that is not an isotope.
The most common isotope of Germanium has 40 neutrons.
6 protons. The number of neutrons varies, but the most common isotope has 6 neutrons.
The most common isotope of Neon has 10 neutrons.
It varies depending on the isotope. The most common isotope (over 90%) has 14 neutrons.
Boron has 5 neutrons and 5 protons for its most common isotope
12
nm