Science Nln Pax Rn Exam Questions (128 Terms) With Verified Definitions Updated 2024

Isotopes {Ans: When atoms have the same number of protons but differ in the number of neutrons in the nucleus}Lens {Ans: Any transparent material that refracts light}Theory of Relativity {Ans: The identification of the existence of an upper limit of velocity. This upper limit (also known as the speed of light through a vacuum) is the fastest that any particle can travel. According to the theory, the speed of the light is absolute, and material particles can never reach the speed of light.}Scalar {Ans: A quantity that does not involve direction}Alkynes {Ans: Which contain carbon-carbon triple bonds}Photon {Ans: Tiny packets of energy}Nonmetal {Ans: Can be gases or brittle solids while at room temperature, are not ductile or malleable (Except bromine, which is liquid at room temperature), do not conduct electricity, do not have luster, have a tendency to snag or hog electrons, have low melting points}Polar Covalent {Ans: When electrons are shared unequally}Doppler Effect {Ans: Occurs whenever there is relative motion between the source of waves and the observer}Photoemission {Ans: Refers to the interaction of light with certain types of materials}Crest {Ans: The maximum upward displacement of a transverse