Structure of the Atom

Class 9 · Science

44 questions17 easy14 medium13 hard

Sample Questions

Q1.The mass of a neutron compared to a proton is:

ASlightly more
BSlightly less
CExactly equal
DMuch greater

Q2.The electron configuration of Chlorine (atomic number 17) is:

A2, 8, 7
B2, 7, 8
C2, 8, 8
D2, 6, 9

Q3.Rutherford's scattering experiment used alpha particles and:

AGold foil
BCopper foil
CSilver foil
DAluminum foil

Q4.The first shell (K shell) can have maximum electrons:

Q5.What type of orbital is denoted by s, p, d, f?

AElectron orbital shapes
BEnergy levels
CAtom sizes
DAtomic numbers

Q6.This is a sample question to preview what you'll get in the full practice test...

A. Option one
B. Option two
C. Option three
D. Option four

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Concepts Covered

Atomic NumberAtomic StructureBohr's ModelBohr's TheoryCarbonCathode RaysChargeCharge BalanceChemical PropertiesChlorineElectric ChargeElectron CapacityElectron DensityElectron OrbitsElectron ShellsElectronic ConfigurationElectronsEnergy LevelsEnergy QuantizationEnergy TransitionsHistory of Atomic StructureHistory of Atomic TheoryHistory of ScienceIonization EnergyIonsIronLight FrequencyMagnesiumMass NumberNeonNeutral AtomsNeutronsNoble GasesNuclear ModelNuclear StructureOrbital RadiusOrbitalsOxygenParticle MassPeriodic TablePotassiumProtonsQuantum MechanicsRutherford ScatteringRutherford's ModelShell CapacitySodiumThomsonThomson ModelUncertainty PrincipleValence Electrons

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