Given the electron configuration of an atom: 1s2, 2s2, 2p5 , what is the element? a fluorine b magnesium c neon d sodium

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

Nonpoint source pollution is difficult to control because it

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic