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____ [38]
3 years ago
7

Mendeleev's proposal of periodic table was based on:

Chemistry
1 answer:
kkurt [141]3 years ago
5 0

The proposal of the periodic table was based upon properties that appeared with some regularity by laying out the elements from lightest to heaviest.

[hope this is helpful!:))]

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A fraction is written in simplest form when the GCF of the numerator and denominator is fill in the blank
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