Question

Which is the electron configuration for bromine?

Answer 1

Answer : The electronic configuration for bromine is, $1s^22s^22p^63s^23p^64s^23d^{10}4p^5$

Explanation :

The given element is, Bromine

The atomic number of bromine is, 35

As we know that the number of electrons is equal to the atomic number. So, the number of electrons is equal to 35.

Therefore, the electronic configuration for bromine will be, $1s^22s^22p^63s^23p^64s^23d^{10}4p^5$

Answer 2

Electron configuration:

The arrangement of electrons in an atom by a superscript, in each sublevel is known as electron configuration.  For example the d block elements have (n-1)d1-10 ns1-2   electronic configuration

The atomic number if bromine is 35 thus there are 35 electrons present which fill accorindg to the Hund’s rule and aufbau principle a follows:

Br-35   1s22s22p63s23p64s23d104p5

Or [Ar] 4s23d104p5