Which element has both metallic and nonmetallic properties? * 1 point Rb Rn Si Sr

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.

How does the viscosity of magma change as magma cools?

What happens to the temperature of a substance when the average kinetic energy of its particles increases?