AFNS — AFNS Chemistry

Atomic Structure


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#17

Bohr model explains:

A) Hydrogen spectrum

B) All molecules only

C) Nuclear fission

D) Organic reactions

Answer:   A
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#18

Ground state is:

A) Lowest energy state

B) Highest energy

C) Ionized always

D) Excited always

Answer:   A
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#19

Excited electron returns by emitting:

A) Photon / light

B) Proton

C) Neutron

D) Nucleus

Answer:   A
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#20

s orbital is:

A) Spherical

B) Dumbbell

C) Clover

D) Linear only

Answer:   A
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#21

p orbital shape is:

A) Dumbbell

B) Spherical

C) Ring only

D) Cube

Answer:   A
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#22

Pauli exclusion principle:

A) No two electrons same 4 quantum numbers

B) Electrons attract

C) Protons spin

D) Neutrons pair

Answer:   A
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#23

Hund rule states:

A) Maximize unpaired electrons

B) Pair first always

C) No orbitals

D) Only s fills

Answer:   A
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#24

Aufbau principle:

A) Fill lowest energy orbitals first

B) Fill highest first

C) Random fill

D) Skip d always

Answer:   A
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