Which statement best describes the formation of an intrusive igneous rock? here are the choices:
a. magma solidifies slowly, resulting in a coarse-grained texture.
b. magma solidifies slowly, resulting in a fine-grained texture.
c. magma solidifies rapidly, resulting in a glassy texture.
d. magma solidifies rapidly, resulting in a clastic texture

The correct answer is - A. Magma solidifies slowly, resulting in a coarse-grained texture.

The intrusive igneous rocks are forming when the magma solidifies very slowly, deep underground, under higher temperatures and pressures. All these conditions contribute to the coarse-grained structure to form on these types of rocks and have it as a trademark. These rocks are very hard rocks, with big density, their colors vary a lot but are more on the dark side usually. Some of them are diorite, granite, pegmatite...

because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. so, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.