used atmega328 in breadboard but pwm is not working

IN arduino at pin 3 i generated 100hz signal it’s working perfectly.

I took atmega328 separately and given 5v to pin 7 and 20 GND to 8 and 22 16MHz Oscillator with two 22pf

I measured the output of PWM pin 3 [in atmega pin 5] i can’t get the output of 100Hz signal

Is anything working?

Can you upload any program ?