Lead
The element lead consists of four naturally occurring isotopes with atomic masses 203.97302, 205.97444, 206.97587, and 207.97663 . The relative abundances of these four isotopes are 1.4, 24.1, 22.1, and 52.4%, respectively.
82. Lead is an element with symbol Pb and atomic number 82. The atomic number relates to the amount of electrons of the element
Magnesium is a meta element. Atomic mass of it is 24.
Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has
Lead is a metal element. Atomic Mass number of it is 207.
Lead is a metal element. Atomic mass of it is 207.
Lead
Lead is a meta element. Atomic mass of it is 207.
Lead
The element lead consists of four naturally occurring isotopes with atomic masses 203.97302, 205.97444, 206.97587, and 207.97663 . The relative abundances of these four isotopes are 1.4, 24.1, 22.1, and 52.4%, respectively.
Lead is a metal element. Atomic mass of it is 207.
82. Lead is an element with symbol Pb and atomic number 82. The atomic number relates to the amount of electrons of the element
Magnesium is a meta element. Atomic mass of it is 24.
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.
The element is Iodine (I). It has an atomic mass of about 126.9.
Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has