How are atomic emission spectra used to identify elements?
As the atom emits photons at precise frequencies it creates a similar
atomic emission spectra to other atoms within its group.
Atoms absorb photons and emit energy at definitive frequencies creating a
universal atomic emission spectra common to all atoms.
When the atom absorbs photons, energy can only be emitted at specific
frequencies creating a characteristic atomic emission spectra.
The atom absorbs photons and emits a continuous spectrum of energy but
only certain frequencies can be detected creating the spectra.

increased stability in the completion of fluorine's outer shell.

2b2t

explanation:

2b2t

i dont know the answe

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole