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07/10/2021 4:43 pm
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(a) How do the properties of eka-aluminum element predicted by Mendeleev compare with the actual properties of gallium element? Explain your answer.
(b) What names were given by Mendeleev to the then undiscovered elements
(i) scandium (ii) gallium, and (iii) germanium?
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07/10/2021 4:45 pm
(a) Eka-aluminium and gallium are the two names of the same element as Eka-Aluminum has almost exactly the same properties as the actual properties of the gallium element.
The properties: atomic mass, density, melting point, formula of chloride and formula of oxide are almost the same.
(b) (i) Eka boron.
(ii) Eka aluminum.
(iii) Eka -silicon.