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Atomic Structure

SC.8.L.18.3
Across
system of electrons surrounding the nucleus of an atom
the gravitational attraction of the mass of the earth, the moon, or a planet for bodies at or near its surface
number characteristic of a chemical element that represents the number of protons in the nucleus which in a neutral atom equals the number of electrons outside the nucleus and that determines the place of the element in the periodic table
Positively charged atomic particle found in nucleus
Negatively charged atomic particle found in nucleus
Neutral atomic particle found in nucleus
Down
mechanical force exerted by a magnetic field upon a magnetic pole placed in it
Force called by eletrical field
Mass of neutrons plus protons
the force that resists relative motion between two bodies in contact
The center of the atom that contains neutrons and protons
the smallest particle of an element that can exist either alone or in combination