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castortr0y [4]
3 years ago
7

The usefulness of mendeleev s periodic table was confirmed by

Chemistry
1 answer:
BigorU [14]3 years ago
7 0
In the table of mendeleev, the lines feature the elements in increasing order of atomic mass<span>.
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hope this helps!
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Explanation:

The element V forms acidic oxide so it must be non- metal because oxides of non metal forms acidic oxide like sulphur ( s ) or chlorine ( Cl₂ )

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