list two
observation which posted a challenge to mendeleev's periodic law
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1
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Here u go
1) Position of Isotopes
2) Arranging elements wrt to Atomic mass
---HLP
MARK BRAINLIST
Here u go
1) Position of Isotopes
2) Arranging elements wrt to Atomic mass
---HLP
MARK BRAINLIST
anshi23456:
please explain both point
position of hydrogen not explained
and also he arranged elements with respect to their atomic mass
got it
mark me
Answered by
2
Placing of isotopes and hydrogen
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