Atoms can form molecules by donating, accepting, or sharing electrons to fill their outer shells.
Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.
A stable atom with neutral charge has the same number of protons and electrons.
While the charge of protons is positve and the charge of electrons is negative, the magnitude of their charges are equal.
Then, in order to the atom be neutral the positve charge equals the negative charge, and so the number of protons equals the number of electrons.
1) mushroom
2) mold
3) moss
