What is the atomic number of an atom? the number of protons

the number protons and neutrons

the number of neutrons

the number of electrons and neutr

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .