Your employer is required by law to report. within 7 days of when you report your. accident or injury. If they do not do this, and they do not give you a phone number. for the insurance company to call, you can. call the workersâ compensation (WC) hotline for assistance at.
In A Nutshell. Atoms are the smallest pieces of matter; they are made of particles (protons and electrons). When atoms are grouped together, these groups are called molecules (the smallest pieces of compounds). You probably think of atoms, molecules, and particles as all being extremely small pieces of matter.
A molecule is the smallest particle of a substance that exists independently. Molecules of most elements are made up of only one of atom of that element. Oxygen, along with nitrogen, hydrogen, and chlorine are made up of two atoms. Look at the model of oxygen above. The two balls represents the two oxygen molecules.