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Much of the mass of an atom is concentrated in its nucleus. The nucleus contains
. and the outer part of the atom contains
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"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

10 years is the answer

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

answersilicon (si); oxygen (o);