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Lead is a metal element. Atomic Mass of it is 207.
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What is the mass number of Pb82?
The mass number of an element is the sum of its protons and neutrons in the nucleus. Since lead (Pb) has an atomic number of 82, the mass number would be the total of protons and neutrons in a lead atom, which can vary based on the isotope.
What is the mass of 6.25x1020 atoms of lead?
The molar mass of lead (Pb) is 207.2 g/mol. To find the mass of 6.25x10^20 atoms, you need to divide the number of atoms by Avogadro's number (6.022x10^23) to get the number of moles, then multiply by the molar mass of lead. The mass of 6.25x10^20 atoms of lead is approximately 1.72 grams.
What is the mass in grams of 1.00 X 1012 lead (Pb) atoms?
To find the mass of 1.00 x 10^12 lead atoms, you would first determine the molar mass of lead (Pb), which is 207.2 g/mol. Then, divide the total number of atoms by Avogadro's number to get the number of moles, and finally multiply by the molar mass to get the mass. So, the mass of 1.00 x 10^12 lead atoms is approximately 3.14 x 10^-9 grams.
What one has more mass an atom of gold or lead?
An atom of lead has more mass than an atom of gold. This is because lead has a greater atomic mass than gold, due to the larger number of protons, neutrons, and electrons in a lead atom compared to a gold atom.
How many neutrons are in Pb-210?
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.
