The periodic table organizes elements according to increasing
a) atomic mass.
b) energy level.
c) atomic number.
d) valence number.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

What is the percentage composition of carbon in the compound ch4

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