What isotope has 25 protons and 17 neutrons

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

How to calculate the mass of copper