Yes
Yes; in his time not every element was known. As every element in the same column (group) has more or less the same chemical properties, he predicted there should be an element that was not yet discovered at some places. For example, under Silicon, there was a gap where he suspected that, to complete the pattern, a new element was missing; he called it eka-silicon, and correctly predicted many of its properties. The new element was found later, with properties very similar to the predictions; it was eventually called Germanium.
This element is selenium.
Boron, Aluminum, Gallium, Indium, Thallium and Ununtrium all inhabit Group 13 on the chart, so they are quite similar to each other chemically.
Elements in a group generally have similar chemical properties because all the elements in that group have the same number of valence electrons, so Ga would be more similar to Al.
Elements in the same family, or group, have similar physical and chemical properties.
Gallium is in group13, (group III) it is more similar to indium than it is to the lighter members of the group, boron and aluminium. It forms two ions, Ga+ and Ga3+ like indium.
Francium is similar to cesium.
After my opinion they are similar.
Gallium or Boron - they are in the same group but one level lower or higher. Elements in the same group tend to have similar chemical properties.
The elements immediately above and below aluminum in the same column of a wide form periodic table: boron and gallium. As is usual for relatively light elements, aluminum is more like the element below it, gallium, than the one above it: Aluminum and gallium are both metals, while boron is a nonmetal. In compounds with oxyanions, however, boron is similar to aluminum compounds with oxyanions.
No it wold not because Gallium is in the same family as Aluminum and therefore has similar properties to Aluminum. Aluminum does not react with acetic acid.
Yes; in his time not every element was known. As every element in the same column (group) has more or less the same chemical properties, he predicted there should be an element that was not yet discovered at some places. For example, under Silicon, there was a gap where he suspected that, to complete the pattern, a new element was missing; he called it eka-silicon, and correctly predicted many of its properties. The new element was found later, with properties very similar to the predictions; it was eventually called Germanium.
pull down ur pants
The atomic numbers of Gallium and Titanium are 31 and 22, respectively. Their atomic weights are approximately 70 and 48 (respectively). They are both generally solid at 298 K and are classified as Metallic. Gallium is normally a byproduct of the manufacture of aluminum.
The element that would have properties most similar to the new element would be an element that lies in the same group as the new element. Specifically, the element with the most similar properties will lie directly above or below that element in the group.
I consider that this similar element doesn't exist.
This element is selenium.