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Which element was named as Eka-aluminium...

Which element was named as Eka-aluminium earlier?

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To answer the question "Which element was named as Eka-aluminium earlier?", we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Context**: The term "Eka-aluminium" refers to an element that was predicted by Dmitri Mendeleev when he was developing the periodic table. At that time, certain elements had not yet been discovered, but Mendeleev hypothesized their existence based on the properties of known elements. 2. **Identifying the Element**: Mendeleev used the prefix "Eka-" to denote elements that were one place below a known element in the periodic table. In this case, "Eka-aluminium" refers to the element that would be found below aluminium (Al) in the periodic table. ...
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Which element was named as eka-silicon in Mendeleef classification of elements ?

Mendeleev was a Russian chemist, who contributed the most for the development of periodic table of elements wherein the elements were arranged on the basis of their fundamental property, the atomic mass and also on the similarity of chemical properties. Only 63 elements were known at his time. He arranged the 63 elements in the increasing order of their atomic masses and found that there was a periodic recurrence of elements with similar physical and chemical properties, He observed that elements with similar properties fall in the same vertical column. These vertical columns are called groups and horizontal rows of elements are called periods. Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-silicon and Eka-aluminium. How do we classify these newly discovered elements (eka-aluminium and eka-silicon)?

Which elements is named after the name of a planet is

Mendeleve predicted the exitence of certain elements not known at that time and named to of them as eka-aluminium and eka-silicon. (a) Name the element which has taken the place of (i) eka-aluminium, and (ii) eka-silicon (b) Mention the period/periods of these elements in the modern periodic table. (c) Write the group/groups of these elements in the modern periodic table. (d) Classify these elements as metals, non metals or metalloids. (e) How many valence electrons are present in the atoms of each these elements?

Assertion:According to mendeleev,the properties of elements are a periodic function of their atomic weights. Reason:Mendeleev left the gap under aluminium and a gap under silicon,and called these elements Eka-Aluminium and Eka-silicon.