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drek231 [11]
2 years ago
15

Who first arranged the elements according to atomic mass ?

Chemistry
1 answer:
kondaur [170]2 years ago
6 0

Answer:

Dmitri Mendeleev

Explanation:

In 1869, just five years after John Newlands put forward his Law of Octaves, a Russian chemist called Dmitri Mendeleev published a periodic table. Mendeleev also arranged the elements known at the time in order of relative atomic mass, but he did some other things that made his table much more successful.

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temperature, refractive index, density, and hardness of an object

Explanation:

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8 0
3 years ago
When a boron atom loses its valence electrons, what is the formula for the resulting ion?
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Answer:

option b. B3+

Explanation:

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8 0
2 years ago
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3 years ago
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Rudiy27

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5 0
3 years ago
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Alona [7]
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