#1
Which of the following best describes metallic bonding?
Sea of delocalized electrons in a lattice of positive ions
ExplanationElectrons freely moving in a lattice of positive ions.
#2
What is the typical structure of metals at the atomic level?
Lattice of positive ions surrounded by a 'sea' of delocalized electrons
ExplanationPositive ions arranged in a lattice, surrounded by mobile electrons.
#3
Which of the following metals is known for its exceptionally high electrical conductivity?
Copper
ExplanationMetal renowned for efficient electrical conduction.
#4
Which of the following metals is NOT typically considered a transition metal?
Zinc
ExplanationZinc doesn't exhibit typical transition metal properties.
#5
Which type of bonding is primarily responsible for the properties of metals?
Metallic bonding
ExplanationDominant bonding type in metal structures.
#6
Which of the following properties is typically associated with metallic bonding?
High electrical conductivity
ExplanationAbility to conduct electricity efficiently.
#7
What is the term for the arrangement of atoms in a metallic structure?
Crystal lattice
ExplanationOrdered arrangement of atoms in metals.
#8
What is the term used to describe the ability of metals to be drawn into wires?
Ductility
ExplanationAbility to be stretched into wires.
#9
Which of the following is NOT a characteristic of metallic bonding?
Low melting point
ExplanationMetallic bonds typically have high melting points.
#10
What is the main reason for the malleability of metals?
Arrangement of atoms in a lattice structure
ExplanationLattice structure allowing for easy deformation.
#11
Which of the following factors contributes to the ductility of metals?
Arrangement of atoms in a lattice structure
ExplanationAtomic arrangement allowing for deformation without breaking.
#12
What is the term for the amount of energy required to remove an electron from a metal atom in the gas phase?
Ionization energy
ExplanationEnergy needed to remove an electron from a metal atom.
#13
Which of the following factors does NOT affect the strength of metallic bonds?
Temperature
ExplanationTemperature generally doesn't alter metallic bond strength.
#14
What is the term for the process of two metal atoms sharing a pair of valence electrons?
Metallic bonding
ExplanationSharing of valence electrons between metal atoms.