CHEM 210 COMPREHENSIVE
EXAMINATION TEST VERIFIED QUESTIONS
AND ACCURATE ANSWERS
●● Covalent bonds
Answer: Electron sharing between non-metals, forming a bond
●● Ion
Answer: Charged particle
●● Cation
Answer: positive ion
●● Anion
Answer: negative ion
●● wave particle duality
Answer: foundation of quantum mechanics
●● Ionization energy
Answer: Amount of energy required to remove the highest
energy/outermost electron from isolated neutral atom in gas state (E1)
,●● Electron Affinity
Answer: isolated atom's attraction for an extra electron (a measurable
quantity)
●● Octet Rule
Answer: Main group elements tend to undergo reactions that leave them
with eight outer-shell electrons
●● Diamagnetic
Answer: All electrons paired
●● Exothermic reaction
Answer: a reaction that releases energy
●● Endothermic reaction
Answer: a reaction that absorbs energy
●● Lattice Energy
Answer: Amount of energy that must be added to break up an ionic solid
into individual gaseous ions (U)
●● Alkali Metals
, Answer: metallic, silvery, malleable, conductors of electricity, very
reactive, occur only in salts
●● Alkaline Earth Metals
Answer: metallic, silvery, occur only in salts, malleable, reactive
●● Halogens
Answer: nonmetals, exist as diatomic, very reactive, only occur in salts
and minerals
●● Noble Gases
Answer: colorless and odorless, nonmetals, very nonreactive, occur
naturally as atomic gases
●● Amphoteric
Answer: A compound, usually a metal oxide or hydroxide, that is able to
react as base and acid
●● Dipole moment
Answer: lopsided charge
●● Polyatomic ions
Answer: charged, covalently bonded groups of atoms
EXAMINATION TEST VERIFIED QUESTIONS
AND ACCURATE ANSWERS
●● Covalent bonds
Answer: Electron sharing between non-metals, forming a bond
●● Ion
Answer: Charged particle
●● Cation
Answer: positive ion
●● Anion
Answer: negative ion
●● wave particle duality
Answer: foundation of quantum mechanics
●● Ionization energy
Answer: Amount of energy required to remove the highest
energy/outermost electron from isolated neutral atom in gas state (E1)
,●● Electron Affinity
Answer: isolated atom's attraction for an extra electron (a measurable
quantity)
●● Octet Rule
Answer: Main group elements tend to undergo reactions that leave them
with eight outer-shell electrons
●● Diamagnetic
Answer: All electrons paired
●● Exothermic reaction
Answer: a reaction that releases energy
●● Endothermic reaction
Answer: a reaction that absorbs energy
●● Lattice Energy
Answer: Amount of energy that must be added to break up an ionic solid
into individual gaseous ions (U)
●● Alkali Metals
, Answer: metallic, silvery, malleable, conductors of electricity, very
reactive, occur only in salts
●● Alkaline Earth Metals
Answer: metallic, silvery, occur only in salts, malleable, reactive
●● Halogens
Answer: nonmetals, exist as diatomic, very reactive, only occur in salts
and minerals
●● Noble Gases
Answer: colorless and odorless, nonmetals, very nonreactive, occur
naturally as atomic gases
●● Amphoteric
Answer: A compound, usually a metal oxide or hydroxide, that is able to
react as base and acid
●● Dipole moment
Answer: lopsided charge
●● Polyatomic ions
Answer: charged, covalently bonded groups of atoms
