How many neutrons does an element have if its atomic number is 47 and its mass number is 150?

What is the maximum number of electrons that an atomic orbital can contain?

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?