5. Use the atomic number, atomic mass, and symbol of the elements to indicate the number of subatomic particles in an atom of the following elements:
a) electrons in oxygen
b) electrons in Li
c) protons in Na
d) protons in helium

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Why is the structure of molecule important to its function?