Ion: Quiz


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Question 1: They have many practical, everyday applications in items such as smoke detectors, and are also finding use in unconventional technologies such as ________.
Electrostatic ion thrusterIon thrusterSpacecraft propulsionHall effect thruster

Question 2: The ________ required to detach an electron in its lowest energy state from an atom or molecule of a gas with less net electric charge is called the ionization potential, or ionization energy.

Question 3: In ionic compounds there arise characteristic distances between ion neighbors from which the spatial extension and the ________ of individual ions may be derived.
Ionic radiusUraniumCaesiumSodium

Question 4: For example, a ________ atom, Na, has a single electron in its valence shell, surrounding a stable, closed inner shell of 10 electrons.

Question 5: For example, sodium has one ________ in its outermost shell, so in ionized form it is commonly found with one lost electron, as Na+.
Noble gasCarbonValence electronMetal

Question 6: Being oppositely-charged, these cations and anions form ionic bonds and combine together to form ________, NaCl, more commonly known as rock salt.
Sodium sulfateSodium hydroxideSodium chlorideSodium carbonate

Question 7: Ionic bonding is a kind of ________ that arises from the mutual attraction of oppositely charged ions.
AromaticityChemical bondHydrogen bondCovalent bond

Question 8: [1] The ionization energy of ________ is generally much lower than the ionization energy of nonmetals, which is why metals will generally lose electrons to form positively-charged ions while nonmetals will generally gain electrons to form negatively-charged ions.
HalogenNoble gasPeriodic tableMetal

Question 9: Instead, many of them may form a ________, in which ions of opposite charge are bound to each other.
Crystal growthSolidCrystal structureCrystallography

Question 10: Sodium, potassium, calcium and other ions play an important role in the cells of living organisms, particularly in ________.
Cell nucleusCell wallVesicle (biology)Cell membrane

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