Thalium is a meta element. Atomic mass of it is 204. Atomic number of it is 81.
81%
The chemical element halogen bromine (Br) has an atomic weight (not mass) of 79,904 and 35 protons.
The atomic number of thallium (Tl) is 81.The atomic weight of Tl is 204.38 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
The atomic mass unit is used to express the measure of the atomic mass.
Thallium is a meta element. Atomic mass of it is 204. Atomic number of it is 81.
Thalium is a meta element. Atomic mass of it is 204. Atomic number of it is 81.
81%
The atomic number 35 corresponds to bromine, and the symbol would be 81Br.
The chemical element halogen bromine (Br) has an atomic weight (not mass) of 79,904 and 35 protons.
The mass number is the som of protons and neutrons in the atomic nucleus of a chemical element. Each isotope has a different mass number. For natural isotopes of bromine the mass numbers are 79 and 81.
The atomic number of thallium (Tl) is 81.The atomic weight of Tl is 204.38 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
The atomic mass unit is used to express the measure of the atomic mass.
Atomic no.=no. of protons Atomic Mass=no. of protons+no. of neutrons Hence, atomic mass is greater
== The equation of atomic mass is protons+nuetrons== atomic mass. ===