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ChemistryPERIODIC TABLEMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

The atomic masses of $L i$ and $K$ are $7$ and $39,$ respectively. According to law of triads the atomic mass of $N a$ will be

Answer:

Solution:

Atomic mass of middle element of triad is equal to average of masses of terminal elements.

$L i$ Na $K$

$7 23 39 \frac{7 + 39}{2} = 23$

Stream:NTA_ABHYASSubject:ChemistryTopic:PERIODIC TABLESubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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