If a carbon atom has 7 neutrons and 6
protons, what is its mass number?

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

Dc versus ac problem. suppose your dc power supply is set to 15 v and the vertical setting on the oscilloscope is at 5 v/div. how many divisions will the trace deflect if you connect the output of the power supply to the scope with the a input switch set on dc? how many divisions if the switch is on ac?

Bonds within one water molecule are examples of