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What is the mass number of this lead atom?
... that each atom of lead contains 82 protons in its nucleus.
What is the mass number of this element Pb 82 207.19?
Lead is a metal element. Atomic Mass number of it is 207.
How many neutrons does lead have?
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
What is the mass number of this element 82 pb?
Mass number refers to a particular isotope of 82Pb.
How many sunny days per year in Philadelphia PA?
Philadelphia averages about 207 sunny days per year.
What is the total number of neutrons in an atom of 82Pb-207?
Neutrons = 207 - 82 = 125
How many proton's neutrons and electrons of Pb are present with a mass number of 207 and an atomic number of 82?
atomic mass equal to number of protons and neutrons. If Pb has a mass of 207 and an atomic number of 82, that means that there are 82 protons in Pb, which also means there should be 82 electrons. That leaves neutrons, which would be 207-82=125 neutrons.
What is lead is made from?
Lead is an atom consisting of 82 protons and 82 electrons. The number of neutrons depends on the isotope of lead. Pb-207 isotope has 125 neutrons (207 - 82 = 125)
What is the mass number of this lead atom?
... that each atom of lead contains 82 protons in its nucleus.
What is the mass number of this element Pb 82 207.19?
Lead is a metal element. Atomic Mass number of it is 207.
How many electrons protons and neutrons are in lead?
Lead, atom number 82, has 4 natural occurring isotopes Pb-204, 206, 207 and 208.They all have 82 protons and 82 electrons.The neutron number varies from 122, 124, 125 and 126 respectively.(Remember: atom number = p+ = e- and mass number = p+ + n0 )Pb-207 has 82 protons, 82 electrons and 125 neutrons
How many neutrons are in the atom pb?
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)
What element has 82 protons and 126 neutrons?
Mass number is found by adding the number of protons plus the number of neutrons. Electrons are not added because they are so minute that their masses have almost no bearing on the total mass of the atom. In this case, the mass number would be about 214.
How many neutrons are in the average atom having an atomic mass of 207.2 grams per mole?
Look on the periodic table for the element with the closest atomic mass to that number. It's lead (Pb, #82.) Now, for the neutron count, you round that atomic mass to the nearest whole number, which is 207, then subtract the atomic number of 82 from it. 207-82=125. So 125 neutrons.
What element has 86 electrons 125 neutrons 82 protons?
The element with 82 protons is lead (Pb). The number of electrons in a neutral atom of lead is equal to the number of protons, which is 82. To find the number of neutrons, you subtract the number of protons from the mass number, which is 125 neutrons for this isotope of lead.
What is the number of neutrons in an atom of lead?
Pb (lead) 82 protons 82electrons 125 neutrons
Why does mass number change from 211 to 207 after a decay?
because it releases energy, neutrons and neutrinos.
