Br - 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5
The noble gas notation form is
Br- [Ar] 4s2 3d10 4p5
Br- ion has 36 electrons and has the same electronic configuration as the noble gas krypton.
Its noble gas notation is [Ar] 3d10 4s2 4p6
40K
For example a thorium isotope is Th-231 or 23190 Th.
The chemical notation is 19F.
It may be Bromine-79 (79Br) because it is one of the 2 stable isotopes. The other one is Bromine-81 (81Br).
The isotope 85Br has 35 protons and electrons; also 45 neutrons.
It is the 35th isotope of Bromine
The atomic number 35 corresponds to bromine, and the symbol would be 81Br.
Bromine is a chemical element and has several isotopes.
The ionic notation for Bromine is Br-. It gains one electron to form Br-
Bromine is a chemical element and has several isotopes.
58
Bromine's average eight is 79.904 is the answer in my reference, with more than 20 isotopes.
The isotope of bromine called 81-bromine. Since the element you are describing has 35 electrons, it must also have 35 protons. Therefore you end up with bromine which is the 35th element (since the amount of protons are equal to the elements number). Adding 46 to 35 gives you the weight of the specific bromine isotope, since the weight of the element is also the name of the isotope. It is also not radioactive.
40K
For example a thorium isotope is Th-231 or 23190 Th.
This is the radioactive isotope bromine-78.
Th-234