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An atom is mostly ____ with a tiny dense nucleus. adhesion
The temperature at which a solid turns into a liquid is its ____. halogen
The molecular attraction between dissimilar molecules is ____. melting point
There are about 28 grams in one ____. nitrogen
The air we breathe is about 78% ____ and 21% oxygen. nucleus
The lightest ____ is fluorine (F). ounce
Water is the ____ in all aqueous solutions. solvent
An atom's ____ contains protons and neutrons. space

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