Advertisements
Advertisements
प्रश्न
Name an element whose properties were predicted on the basis of its position in Mendeleev's periodic table.
उत्तर
Eka-silicon
APPEARS IN
संबंधित प्रश्न
Name three elements with filled outermost shells.
By considering their position in the Periodic Table, which one of the following elements would you expect to have maximum metallic characteristic?
State any three demerits of Mendeleev’s periodic table.
On what basis did mandeleev arrange the elements in his periodic table?
What were the two criteria used by Mendeleev to classify the elements in his periodic table?
(a) Write its electronic configuration and determine its valency.
(b) Is it more reactive or less reactive than Ca (atomic number 20)? Justify your answer giving reason.
(c) Is it a metal or a non-metal?
(d) Write the formula of its oxide.
State the contributions made by Mendeleev towards the periodic table.
Write the molecular formula of the oxide of any one of the elements in Mendeleev’s periodic table.
What physical and chemical properties of elements did Mendeleev consider in compiling the periodic table?
What challenges did Mendeleev face in following periodic law?
