How many neutrons does element X have if its atomic number is 21 and its mass number is 95?

What happens when a vinyl strip is rubbed with a woolen cloth, then brought near a stream of water?

What is an ionization energy and the first ionization energy ...

Which of these elements has a smaller atomic#? chlorine, cadmium, neon

Natalia is studying a wave produced in her magnetics lab. this wave can move through the empty space in a vacuum and carries a lot of energy. what wave is natalia most likely studying? a sound wave an ocean wave a gamma ray an earthquake shock wave

In the atomic model, what particles are found inside the nucleus of an atom

Effect of ph on conformation of aplha helix

How can we tell when something is polar or non-polar in an Inter-molecular Force?

A reaction is most likely to occur when reactant particles collide with

A student has a solution with a pH of 7. The student adds HF, hydrogen floride, to the solution, hoping to increases the pH of the solution. What is wrong with this student's approach? Select one: A. You cannot change the pH of a solution. B.

What is more likely to happen if wetlands are drained?