The element is Bromine which as atomic number of 35.
Atomic number :
The number of protons in an atom is equal to atomic number.
It is given that, an atom of a certain element has 35 protons and has 7 valence electrons.
So that, atomic number of atom [tex]=35[/tex]
From periodic table, It is observed that Bromine has atomic number of 35.
Learn more about atomic number here:
https://brainly.com/question/621740
