Explain why coal, oil, and natural gas are fossil fuels.

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

What is the common name for the compound shown here? enter the common name of the compound shown?