In the case of $\ce{Br-}$ it is an anion of charge minus 1 meaning that it will have one more electron than a normal bromine atom. So really its electron configuration will be the same as krypton which is the atom after bromine. So all you have to do is add an extra electron in the last orbital, the 4p orbital.

2018年2月28日 · The electron configuration of Bromine is #1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5#.

2017年7月20日 · How do electron configurations affect properties and trends of a compound? What is the electron configuration for a sodium ion? What is the electron configuration for a nitride ion?

2016年7月2日 · Br = 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5 Br = [Ar] 4s^2 3d^10 4p^5 Bromine is in the 4th energy level, p block, 5th column, this means that the electron configuration will end 4p^5 Br = 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5 Br = [Ar] 4s^2 3d^10 4p^5

2015年12月24日 · What is the electron configuration for bromine? Chemistry Electron Configuration Electron Configuration. 1 ...

2015年11月16日 · The "Br"^(-)" ion has 36 electrons. The atomic number for bromine is 35, which means it has 35 protons in its atomic nuclei. A neutral bromine atom would also have 35 electrons. In order for a bromine atom to become a 1- bromide ion, it would have to gain an additional electron. Below is the Lewis dot structure for a neutral bromine atom, which has …

2014年11月21日 · The noble gas configuration for bromine is : [Ar]3d^(10)4s^(2)4p^(5) The previous noble gas is argon which has the electron configuration of : 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6) We call this the argon core. It's a handy way of writing out electron structures without writing all the inner electron shells.

2014年4月29日 · "Noble gas notation" means that in writing out an electron configuration for an atom, rather than writing out the occupation of each and every orbital specifically, you instead lump all of the core electrons together and designate it with the symbol of the corresponding noble gas on the periodic table (in brackets). For example, if I wrote out the full electron configuration …

2016年6月16日 · The complete electron for a neutral arsenic atom is: "1s"^2"2s"^2"2p"^6"3s"^2"3p"^6"3d"^(10)"4s"^2"4p"^3 Its shorthand electron configuration is: ["Ar"]"3d"^(10)"4s"^2"4p"^3 As is the chemical symbol for the element arsenic. Its atomic number is 33, which is the number of protons in the nuclei of its atoms. In a neutral atom, the number …

You could render bromide ion that way. But the outermost electrons in the "krypton core" are potentially reactive, valence electrons; therefore $\text{[Kr]}$ is not an accurate description of how the electrons really act.