What is the frequency of the charge oscillations in the capacitor after the switch is charged? Give your answ?

A 2.50 micro-farad capacitor and and a 0.450H inductor are connected in series with a open switch. The capacitor is initially charged to 6.20 micro-coulombs. What is the frequency of the charge oscillations in the capacitor after the switch is charged? Give your answer in Hz with no decimal.