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Valence electron: Quiz

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Question 1: ________ have an electrical conductivity intermediate between metals and nonmetals, and also differ from metals in that their conductivity increases with temperature.
SemiconductorPhysicsCondensed matter physicsQuantum mechanics

Question 2: This can be achieved one of two ways: an atom can either share electrons with neighboring atoms, a ________, or it can remove electrons from other atoms, an ionic bond.
AromaticityCovalent bondChemical bondMetallic bond

Question 3: This configuration is normally abbreviated to (Ne) 3s2 3p3, where (Ne) signifies the core electrons whose configuration is identical to the ________ neon.
Periodic tableHalogenMetalNoble gas

Question 4: Atoms with a complete shell of valence electrons (corresponding to an ________ s2p6) tend to be chemically inert.
OxygenHydrogenNoble gasElectron configuration

Question 5: For main group elements, the number of valence electrons depends on the ________ in a simple way, but for transition metals the relationship is more complex.
OxygenElectron configurationNoble gasHydrogen

Question 6: Examples of solid elemental insulators are diamond (an elemental form of ________) and sulfur.
UraniumOxygenCarbonAluminium

Question 7: The valence electrons which are present have small ________, and in the solid state they are relatively free to leave one atom and move to its neighbour.
ChemistryAluminiumIonization energyPeriodic table

Question 8: The most reactive non-metals are the halogens such as fluorine (F) and ________ (Cl), which have electron configurations s2p5 and require only one additional valence electron for a closed shell.
NitrogenHydrogenOxygenChlorine

Question 9: Atoms with one or two valence electrons more than a closed shell are highly reactive because the extra electrons are easily removed to form positive ________.
ElectrolyteIonHalf cellLithium-ion battery

Question 10: The valence electrons are also responsible for the ________ of elements, which may be divided into metals, nonmetals, and semiconductors or metalloids.
CopperElectrical resistanceResistivityElectrical conductivity







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