The number of neutrons in the nucleus of an atom can be calculated by 1. adding together the numbers of electrons and protons 2. subtracting the number of protons from the number of electrons 3. subtracting the number of protons from the mass number 4. adding the mass number to the number of protons

What are the percent by mass of copper in penny lab

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

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