Can you answer this please

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

What is the molar mass of potassium nitrate, kno3

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.