Question

HEYA..... KARTIK HERE
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#NEED FULL EXPLANATION
#20 POINTS
#NOSPAMS
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Help me in chemistry........ ☺️

Answer 1

Heya... Here is ur answer user...
Doeberiner triad is described as a relationship between the properties of elements and their atomic weights....
So according to this definition
C. Mg, Ca, Sr
Is the correct option
.......
Newlands law of octave generalize that if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements....
So according to this definition
B. F, Cl, Br
Is the correct answer
.........
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Answer 2

Answer:

what is your question broooooo