Halogens are a group in the periodic table , they are non-metals , Gases like bromine , fluorine and chlorine are halogens in periodic table
Fluorine has a atomic mass of 9 ( number of protons )
Fluorine's relative mass is 18.998 as its the addition of all the masses of fluorine and its isotopes
It symbolizes F and can only exist in gas , talking about in what state it can exist in our atmosphere
Fluorine has 9 electrons , 9 protons and 10 neutrons
Fluorine has a mass number of 19
Fluorine has a color of yellow
Electron structure - 2,7
Chlorine has a atomic mass of 17 which talks about the proton number
Chlorine has a relative mass of 35.446 , 35.457
It symbolizes CI as it came after carbon it symbolizes CI , it stays in the form of gas in our atmosphere
Chlorine has 17 protons , 17 electrons and 18 neutrons
Chlorine has a mass number of 35
Chlorine has a color of yellowish green
Electron structure - 2 , 8 , 7
Bromine has a atomic number of 35 , number of protons
Bromine symbolizes as Br
Bromine relative masses are 79.901 , 79.907
Bromine has 35 protons , 35 electrons and 45 neutrons
Bromine can stay in liquid in our atmosphere
Bromine has a mass number of 80
Bromine has a color of brown
Electron structure - 2,8,18,7
Halogens are the most reactive nonmetals on the periodic table.