Vaishali Gaur
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Posted 5 year ago
Who invented periodic table?
4 Answer(s)
Vaibhavi Salunkhe
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Posted 5 year ago Vaibhavi Salunkhe

Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them. In 1886 French physicist Antoine Bequerel first discovered radioactivity.

Mitesh Sharma
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Seema Kumari
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Posted 5 year ago Seema Kumari Gurushala Teacher Coach

In 1869 Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them. In 1886 French physicist Antoine Becquerel first discovered radioactivity.

Manoj Kushwaha
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Posted 5 year ago Manoj Kushwaha

मेंडलीफ