Number of neutrons = Mass number - atomic number = 210 - 82 = 128
The atomic number (number of protons) of the element is needed to tell the number of neutrons. Mass number = atomic number + number of neutrons.
Number of neutrons = Mass number - Atomic number = 63 - 29 = 34 neutrons
How many neutrons would it have if it had 11 neutrons? 11.
Mass number is about the neutrons and protons. The total of neutrons and protons.
Number of neutrons = Mass number - Atomic number = 251 - 92 = 159
The mass number of an atom is equal to the sum of the number of protons and neutrons in its nucleus. Since lead has an atomic number of 82 (number of protons), if the lead atom has 80 neutrons, then the mass number would be 82 (protons) + 80 (neutrons) = 162.
The mass number of an atom is the sum of its protons and neutrons. Lead (Pb) has an atomic number of 82, so it has 82 protons. If it has 127 neutrons, the mass number would be 82 (protons) + 127 (neutrons) = 209.
The "210" is the mass number. The mass number is the sum of the number of neutrons and the number of protons. So if you can locate a Periodic Table, you can see that lead's atomic number of 82, which means it has 82 protons. If you do a little subtraction (210-82), you can find the number of neutrons in this particular isotope, which is 128.
The atomic number of lead is 82. The number of neutrons in an isotope is always the difference between the isotopic mass number and the atomic number. In this instance, 206 - 82 = 124.
I cannot answer this question.
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
The atomic number of lead (Pb) is 82, which represents the number of protons. To find the total number of neutrons, subtract the atomic number from the mass number. For lead-207 (207Pb), the mass number is 207. Therefore, the total number of neutrons in an atom of 207 82 Pb is 207 - 82 = 125 neutrons.
The atomic number (number of protons) of the element is needed to tell the number of neutrons. Mass number = atomic number + number of neutrons.
Number of neutrons = Mass number of an isotope - 96
Carbon is the element with mass 12. It has 6 neutrons.
You take the atomic mass (the small number in the upper left corner of the square in the periodic table) and subtract the atomic number from it (the big bold number on the periodic table)
Mass number = Atomic number (or number of protons) + Number of neutrons