Question

name all element for which mandleev left space in his periodic table??​

Answer 1

Answer:

It was later identified as gallium. Gallium, germanium, and scandium were all unknown in 1871, but Mendeleev left spaces for each and predicted their atomic masses and other chemical properties. Within 15 years, the “missing” elements were discovered, conforming to the basic characteristics Mendeleev had recorded.

Explanation:

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Answer 2

Answer:

Gallium, germanium, scandium and technetium✨ are the elements which Mendeléev left spaces as these all elements were unknown till 1871 and he predicted the atomic masses and chemical properties for the undiscovered elements.

Eka-boron (scandium) Eka-aluminium (gallium) Eka-manganese(technetium) Eka-silicon (germanium)

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