What happens to a rock when it is weathered ? ? a. it is broken into smaller pieces b. it is moved by wind, air, or water c. it is built up as material is deposited d. it is changed into another type of rock

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.