lithium (Li),_______and potassium (K) is Dobereiner's triad.
(a) Magnesium(Mg)
(b)Aluminium(Al)
(c)Sodium(Na)
(d)Calcium(Ca)
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sodium will be the answer
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Answered by
1
Answer:
sodium
Explanation:
because the mean of the atomic mass of li and k should be eqaul to the atomic mass of sodium in short this three are dobineers triads
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