The total black bear population is estimated to be between 600,000 to 700,000 (excluding baby cubs). Habitat distribution information suggests about 55% live in Canada, 40% live in the United States, and 5% are in Mexico (accurate population facts south of Mexico unknown).
The six electrons can't all go around the nucleus at the same distance-only two electrons can fit in the inner shell. So some of the electrons have to go farther away from the nucleus. A carbon atom has two shells, with two electrons in the inner shell and four electrons in the outer shell.But that outer shell could hold as many as eight electrons-it's not full.ost of what we use for fuel is made of carbon, too. Coal, gasoline, oil, and wood are all made of hydro-carbons. In the picture you can see leftover carbon dust pouring out of this truck that burns diesel fuel. It's this carbon pouring into the air that's causing global warming.
Carbon is the sixth element listed on the Periodic Table of the Elements. Represented by the symbol C, carbon is the single most important element to the existence of life as we know it. Carbon is present in every living thing on Earth and is the second most abundant element found in humans. Carbon possesses a number of special chemical and physical properties that make it unusually suitable for the formation of complex compounds necessary for life. Structure A stable carbon atom possesses six protons, six neutrons and six electrons, resulting in an atomic mass of 12.011 and the sixth position on the Periodic Table of the Elements.