E-PolyLearning

551. Louis de Broglie suggested that electrons behaved like
a. clouds
b. winds
c. rains
d. deserts
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Answer: (a).clouds

552. Each principal quantum shell consists of different numbers of
a. orbitals
b. magnetic field
c. electric field
d. electromagnetic field
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Answer: (a).orbitals

553. Each sub-shell has at least one or two
a. atomic orbital's
b. axis
c. lobes
d. zones
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Answer: (a).atomic orbital's

554. The filling of sub-shells are dependent upon
a. conductivity
b. relative energy
c. density
d. probability
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Answer: (b).relative energy

555. The letters denote sub-shells are
a. s, p, d, f
b. S, P, D, F
c. l, m, n, p
d. s, p, l, m
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Answer: (a).s, p, d, f