What is the frequency of light released when an electron moves from the 2nd energy level to the 1st energy level in hydrogen (don't reach for a calculator, you should be able to estimate 3/4s of a
number like 3.3).

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

In apex! a liquid heated beyond a certain temperature becomes