How many atoms are in 0.70 mol of iron?

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. : )

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next