D) DEINE THE FOLLOWING. a) molecule b) kinetic energy c) Atomicity d) Cathode rays e) Orbit
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Answer:
a)the smallest unit into which a substance can be divided without changing its chemical nature.
b)energy which a body possesses by virtue of being in motion.
c)the number of atoms in the molecules of an element.
the state or fact of being composed of indivisible units.
d)a beam of electrons emitted from the cathode of a high-vacuum tube.
e)a curved path taken by a planet or another object as it moves around another planet, star, moon, etc.
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Answer:
molecule - a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
kinetic energy - energy which a body possesses by virtue of being in motion.
atomicity- the number of atoms in the molecules of an element.
cathode rays - are streams of electrons observed in vacuum tubes.
orbit - An orbit is the fixed path along which electrons revolve around the nucleus of the atom.
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Explanation: