Atomic Structure

AIEEE 2015 Questions › Physical Chemistry questions › Atomic Structure

which electronic level would allow the hydrogen atom to absorb a photon but not emit one ?
a)3s
b)2p
c)2s
d)1s

#Chemistry #Physical Chemistry

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2 Answers

996

Swarna Kamal Dhyawala ·2013-06-18 10:12:21

hydrogen atom absorbs energy and gets excited in higher orbits and if atom emits electron it comes at lower energy level or orbit.. 1s is the first orbit or lowest energy level so if it emits photon it has no place to go therefore 1s electronic level never emits photon

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Raunaq Saha Thank you :)
Upvote·0· Reply ·2013-06-19 05:42:29
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996

Swarna Kamal Dhyawala ·2013-06-17 09:28:03

(A) 1s

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Raunaq Saha but why ? Could you please explain ?
Upvote·0· Reply ·2013-06-18 06:11:06
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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

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∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω