I cannot answer this question.
154
The mass number is the amount of protons added to the number of neutrons in the nucleus
Lead is found on the Periodic Table in the 14th Column. It has an atomic number of 82, a net ionic charge of +2 and a molar mass of 207.2.
Lead has a mass number of 82, which of course applies to all isotopes. There are stable isotopes with atomic weights 206,207,208. See Wikipedia 'Lead' for more.
The atomic number of lead (Pb) is 82. I suppose that is what you want to know.
Lead is a metallic element. Mass number of it is 208.
The mass number of an isotope is the number of protons and neutrons (the total of the sum of the two) in an atom of that isotope.
The mass number of lead is 207.2.
Lead
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.
82. Lead is an element with symbol Pb and atomic number 82. The atomic number relates to the amount of electrons of the element
Lead
Sodium is a metal element. Mass number of it is 23.
Lead is a metal element. Atomic Mass number of it is 207.
Lead is a meta element. Atomic mass of it is 207.
Lead
Lead is a metal element. Atomic mass of it is 207.
... that each atom of lead contains 82 protons in its nucleus.
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.
Lead is a metal element. Atomic mass of it is 207.
An element, such as lead with its 82 protons per atomic nucleus, does not have a mass number, although it does have an average atomic mass, which for lead is 207.2. This is constituted from four lead isotopes that are radioactively stable. The isotopes have mass numbers of 204, 206, 207, and 208.
82. Lead is an element with symbol Pb and atomic number 82. The atomic number relates to the amount of electrons of the element
Lead is a non element. Atomic mass of it is 12.
Lead
Lead