An element has 8 protons and 8 neutrons in its nucleus and 8 electrons revolving around the nucleus. what is the atomic number and atomic mass of this element? a. the atomic number is 16 and the atomic mass is 8. b. the atomic number is 8 and the atomic mass is 8. c. the atomic number is 8 and the atomic mass is 16. d. the atomic number is 16 and the atomic mass is 4. e. the atomic number is 4 and the atomic mass is 16.

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.