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Molecule: Quiz


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Question 1: According to this definition ________ atoms are considered molecules despite the fact that they are composed of a single non-bonded atom.
HalogenMetalPeriodic tableNoble gas

Question 2: [7] Spectroscopy does not generally refer to diffraction studies where particles such as neutrons, electrons, or high energy ________ interact with a regular arrangement of molecules (as in a crystal).
X-rayNuclear fusionRadiation therapyIonizing radiation

Question 3: According to Merriam-Webster and the Online Etymology Dictionary, the word "molecule" derives from the ________ "moles" or small unit of mass.
Vulgar LatinRoman EmpireLatinOld Latin

Question 4: H2+ is composed of two positively-charged protons and one negatively-charged ________, which means that the Schrödinger equation for the system can be solved more easily due to the lack of electron–electron repulsion.

Question 5: The smallest molecule is the ________ hydrogen (H2), with an overall length of roughly twice the 74 picometres (0.74 Å) bond length.
Diatomic moleculeChlorineNitrogenOxygen

Question 6: In molecular sciences, a molecule consists of a stable system (bound state) comprising two or more ________.

Question 7: A pure substance is composed of molecules with the same ________ geometrical structure.
Arithmetic meanMeanAverageStandard deviation

Question 8: The molecular mass can be calculated from the chemical formula and is expressed in conventional ________ equal to 1/12th of the mass of a neutral carbon-12 (12C isotope) atom.
HydrogenAtomic mass unitMolar massMole (unit)

Question 9: Molecules with the same ________ in different arrangements are called isomers.

Question 10: In organic chemistry and ________, the term molecule is used less strictly and also is applied to charged organic molecules and biomolecules.
ProteinBiochemistryMetabolismAmino acid


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