To be neutral, Bromine (atomic symbol Br) has 35 electrons. Ions have more or less.
The anion is Br+; bromine has 7 valence electrons.
A bromine atom has seven electrons in its outermost shell.
Bromine gain one electron and become Br-.
Isoelectronic means having the same amount of electrons, so Kr is isoelectric with Br.
Bromine will gain one electron to become Br-
The neutral atom has 35 electrons.
8
Eight electrons in the 2nd shell of Br- This is also the number of electrons in the 2nd shell of I-, Cl- and even F- !
The anion is Br+; bromine has 7 valence electrons.
35 protons, 36 electrons
A bromine atom has seven electrons in its outermost shell.
Bromine gain one electron and become Br-.
Isoelectronic means having the same amount of electrons, so Kr is isoelectric with Br.
Bromine will gain one electron to become Br-
Br has an atomic number of 35 giving it 35 protons. Since it has a charge of 1- it will have 36 electrons to form a octet.Br- will have 35 protons and 36 electrons. The negative charge indicates it gained an electron.
Br-80 has 35 protons.
.....Cl Br-C-Cl ....Br Single Bonds for all and 3 pairs of unbonded electrons on both Cl's and both Br's