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"Eka boron" and "eka silicon" are placeholder names given to hypothetical elements predicted by Dmitri Mendeleev in his Periodic Table before their actual discovery. Eka boron is now known as Scandium, while eka silicon is now known as Germanium.
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What is the modern name of Eka Boron?
The modern name of Eka Boron is Francium. It is a highly radioactive element with the symbol Fr and atomic number 87 in the periodic table.
The modern name for eka-silicon?
Germanium.
Are boron and silicon in the same group?
No, boron and silicon are not in the same group on the periodic table. Boron belongs to group 13, while silicon belongs to group 14.
What do we now call eka-silicon?
Eka-silicon is now known as germanium. It is a chemical element with the atomic number 32 and is commonly used in electronic devices and fiber optics.
Are boron and silicon in the same period?
No, boron is in period 2, while silicon is in period 3 on the periodic table. They are both metalloids, but they are in different periods.
What is eka boron eka aluminum eka silicon?
Eka boron, eka aluminum, and eka silicon are theoretical elements predicted by Mendeleev's periodic table to fill in the gaps in the periodic table. They were later discovered and named as Scandium, Gallium, and Germanium, respectively.
What is the modern name of Eka Boron?
The modern name of Eka Boron is Francium. It is a highly radioactive element with the symbol Fr and atomic number 87 in the periodic table.
The modern name for eka-silicon?
Germanium.
Are boron and silicon in the same group?
No, boron and silicon are not in the same group on the periodic table. Boron belongs to group 13, while silicon belongs to group 14.
What do we now call eka-silicon?
Eka-silicon is now known as germanium. It is a chemical element with the atomic number 32 and is commonly used in electronic devices and fiber optics.
Are boron and silicon in the same period?
No, boron is in period 2, while silicon is in period 3 on the periodic table. They are both metalloids, but they are in different periods.
What prediction did Mendeleev make that came true less then 20 yrs later?
Mendeleev predicted the existence and properties of the then-undiscovered elements eka-aluminum, eka-silicon, and eka-boron, which later were discovered and named gallium, germanium, and scandium, respectively, within 15 years of his prediction.
What was the thing that was blank on Mendeleev's periodic table?
The elements which were not discovered at that time were made blank. Mendeleev named them as eka-aluminium, eka-silicon etc. They were discovered later and were placed in the gaps.
What do boron silicon and arsenic have in common Use the partial Periodic Table for reference?
Boron, silicon, and arsenic are all members of Group 15 of the periodic table, also known as the nitrogen group. They are nonmetals (boron is a metalloid) with varying properties. Boron is the first element in the group, silicon is a metalloid with semiconducting properties, and arsenic is a metalloid with some similarities to a metal.
Names of semi metals?
Boron Silicon Germanium.
Which elements did Mendeleev leave space for in his first periodic table?
Mendeleev left spaces for undiscovered elements. He named them eka-aluminium, eka-silicon etc.
What was Mendeleev able to do with the gaps he left in the periodic table?
Mendeleev left those gaps for the elements which were not discovered at that time. He named those elements like eka-aluminium,eka -silicon etc.
