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In 1871 noble gases wee unknown.

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7y ago

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Who was the first to think of the periodic table?

Dmitri Mendeleev.


Why was francium not in Mendeleev's periodic table?

In 1869 when D. Mendeleev designed his periodic table any element in the period 7 was known. Today francium is in the group 1, period 7, atomic number 87.


Who came up with the element argon?

I think it he some old guy who does not want anyone too know who he is


What are the elements named after mendeleev?

It is in 101st element in the Periodic Table.. Md-Mendelevium


Who discovered the periodic table of element?

Dmitri Mendeleev, although he did it differently we than it is right now. He pridected elements, and now, they've been discovered. Some people discovered elements Mendeleev didn't predict. Most of them were radioactive, like rutherfordium. (Of course, that element was synthetic. There are only 92 natural elements.) Mendeleev used different symbols than we do now, e.g. yttrium was Yt. The elements Mendeleev predicted were gallium, germanium, and scandium.


What was the name of the first publisher of the periodic table of elements?

I think that was Dmitri Mendeleev way back in 1869.


Did Dmitri mendeleev have a pet?

I think


Ia argon solid?

i think argon is solid


What man first made a element?

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What is the system of chemistry?

I suppose that you think to periodic table of Mendeleev.


Why do you need to inhale argon?

I don't think there is a biological need to inhale argon, and the element has been linked to asphyxiation, but if one were to desire to do so, it would be because argon exists as a gas at room temperature, as the melting and boiling point are -189.35 Celsius and -185.85 Celcius, respectively.


What low melting metal did Mendeleev predict?

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