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The line spectrum of two elements is no...

The line spectrum of two elements is not identical because

A

The elements do not have the same number of neutrons

B

They have different mass numbers

C

Their outermost electrons are at different energy levels

D

All of the above

Text Solution

Verified by Experts

The correct Answer is:
C
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The spectrum produced from an element is :

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Knowledge Check

  • A line spectrum is observed when

    A
    a gas excited by heating or by passing a discharge through it
    B
    a gas is excited by applying pressure
    C
    a gas under low pressure condition is excited by heating or by passing a discharge through it
    D
    a gas under high pressure condition is excited by heating or by passing a discharge through it

  • Line spectrum is given by

    A
    sun
    B
    mecury vapour lamp
    C
    candle
    D
    electric bulb

  • Line spectrum of Li^(+2) and He^(+) are identical due to

    A
    Both are cations
    B
    Both have same no of protons
    C
    Isoelectronic species produce identical spectrum
    D
    none

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    Why are the absorption spectrum of Chl a and the action spectrum of photosynthesis is identical?

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