Chapter 2 Quiz Review - Chemistry of Life

In an atom the ​ (a)   are positively charged and the ​ (b)   are negatively charged

The atomic number technically refers to the number of ​ (a)  

The approximate number of neutrons found in argon is

(a)  

In the following diagram of water molecules, the blue spheres represent

Match the following

How many electrons can fit in the second shell?

All of the following are four of the most abundant molecules in living things EXCEPT

What makes an isotope different?

Atoms that have an extra electron are called ​ (a)   and atoms that have an extra proton are called ​ (b)  

Match the terms that have to do with water with their definitions.