In an Electron configuration, such as 1s^2 2s^2 2p^6 3s^1 the letters stand for?

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.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?