Is a process that breaks water down into the gases hydrogen and oxygen

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape