A scientist is designing a device that will kill harmful cells in the human body using high energy waves. Which type of wave would be most effective in accomplishing the goal?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?