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Why was the oxide ratio column not shown in earlier Mendeleev periodic table?
Wiki User
∙ 11y ago
I personally am not sure what an "oxide ratio column" is, but I would guess it's because he didn't think it was important at the time. I'm not sure it's important now. It sounds vaguely like a way of indicating common valences, but it doesn't sound like an especially good way of doing so.
Wiki User
∙ 11y ago
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What is the oxide formula of element in group lllA of periodic table?
X2O3 as elements in group IIIA are trivalent metals and oxygen is divalent
Why is magnesium oxide not on the periodic table?
It is for elements not compounds
Is strontium and oxygen a ionic compound?
Strontium is in the second column of the Periodic table, therefore it naturally carries a 2+ charge... Oxygen is a Chalcogen so it naturally carries a 2- SrO
Who created the periodic table?
The first periodic table was developed by Dmitri Mendeleev in the mid-19th century.He wasn't the only person thinking along those lines ... both John Newlands and Lothar Meyer had proposed similar ideas However, Newlands was largely criticized and ignored at the time, and Meyer didn't make any predictions, so Mendeleev's table (which did make predictions about the properties of several as-yet-undiscovered elements) is generally regarded as the first.
Is zinc oxide covalent or ionic?
Zinc Oxide is ionic. Covalency arises between elements close to each other in their vertical groups in the Periodic Table.
What is the oxide formula of element in group lllA of periodic table?
X2O3 as elements in group IIIA are trivalent metals and oxygen is divalent
Why is magnesium oxide not on the periodic table?
It is for elements not compounds
What does NO mean on the periodic table?
The only thing it might mean would be number, but that is usually no. and not NO. NO would be nitrogen oxide (nitric oxide), but that would NOT appear in the periodic table, as it is a compound, and only ELEMENTS appear in the periodic table.
What does No stand for on the periodic table?
NO is a compound called nitrous oxide and is not on the periodic table. It is a combination of Nitrogen and Oxygen (N for nitrogen and O for oxygen) Periodic table lists only elements and not compounds.
Where is iron oxide on the periodic table?
Iron oxide is not on the periodic table because it is a compound and the periodic table is only for elements.The elements that make up iron oxide (iron and oxygen) can be found on it however.Iron is near the top and middle of the periodic table and has the symbol Fe.Oxygen is near the top-right corner and has the symbol O.
What is bauxite on the Periodic chart?
Bauxite is not on the periodic table as it is a mineral compound containing mainly aluminum oxide.
Which is a property that Mendeleev's predicted for gallium?
Examples: density, melting point, atomic weight, density and formula of oxide.
Is strontium and oxygen a ionic compound?
Strontium is in the second column of the Periodic table, therefore it naturally carries a 2+ charge... Oxygen is a Chalcogen so it naturally carries a 2- SrO
Is gallium oxide basic or amphoteric?
Gallium Oxide is an amphoteric Oxide because it is just below Aluminum in periodic table which also gives amphoteric oxide Regards: Engineer Ahmad
Who created the periodic table?
The first periodic table was developed by Dmitri Mendeleev in the mid-19th century.He wasn't the only person thinking along those lines ... both John Newlands and Lothar Meyer had proposed similar ideas However, Newlands was largely criticized and ignored at the time, and Meyer didn't make any predictions, so Mendeleev's table (which did make predictions about the properties of several as-yet-undiscovered elements) is generally regarded as the first.
What is the name of Copper Periodic plus Oxygen?
Copper oxides are Cu2O - copper(I) oxide and CuO - copper(II) oxide.
What is Na20 from the periodic table of elements?
Na2O is Sodium Oxide. Not Dioxide
