If i have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 l, what will the new pressure inside the piston be?

Explanation:

Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.

The electrons are filled according to Afbau's rule in order of increasing energies and thus the electronic configuration  for bromine with atomic number of 35 and thus containing 35 electrons is:

The nearest noble gas is Argon with 18 electrons and thus electronic configuration  for bromine in terms of noble gas is: