A student analyzed iwo diagrams of a nitrogen atom. Both diagrams showed seven protons in the nucleus, but the number of neutrons differed What are the two nitrogen atoms?
A electrons
B isotopes
C covalent bonds
D ionic bonds

Answershe should not have multiplied the sulfur atoms by the subscript 4

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Gravity, from the center of mass of the box, extending downward normal force, from the floor under the box, extending upward, equal to gravity push force, acting at a point on the box, extending in the direction of motion friction, acting at any point on the box directly opposite the push, extending directly opposite to the motion