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First, second & third ionization energie...

First, second & third ionization energies are 737, 1045 & 7733 `KJ//mol` respectively. The element can be `:`

A

Na

B

B

C

Al

D

Mg

Text Solution

Verified by Experts

The correct Answer is:
A
`:' 100g `chlorophyll contains `2.68g Mg=(2.68)/(24)` mole `Mg`
`:. 2g` chlorophyll contains `(2.68xx2)/(24xx100)` mole `Mg=2.2xx10^(-3)`mole `Mg`
No. of `Mg` atoms `=2.2xx10^(-3)xx6.023=1.345xx10^(21)` atoms of `Mg`.
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RESONANCE ENGLISH-PERIODIC TABLE & PERIODICITY-ORGANIC CHEMISTRY(BASIC CONCEPTS)
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