Why do we need to classify elements - class-XI
Description: why do we need to classify elements | |
Number of Questions: 19 | |
Created by: Rachana Sahu | |
Tags: chemistry classification of elements and periodicity in properties classification of elements- the periodic table periodic classification of elements periodic table, periodic properties and variations of properties periodic table atomic theory, periodic classification and properties of elements |
In laboratory burners, we use
Who was the first to classify the elements into metals and non-metals?
The elements posses stable electronic configuration are called as __________.
According to classification of elements most of non-metals are placed in ________ block.
After the classification of elements study of elements become____________.
Classification of elements are done on the basis of ___________.
The physical properties of elements changes according to_____________.
Catalyst in a reaction:
A biological catalyst is
Transition elements are also known as ____________.
A metal crystallizes with a face-centred cubic lattice. The edge length of the unit cell is 408 pm. The diameter of the metal atom is:
Hydrolysis of urea is an example of
Predict block, group and period of $Sb$.
Based on modern classification of periodic table atomic number increases on moving from _________ in periodic table.
The modern periodic table is most_________ form of periodic table.
Significance of classification of periodic table is to ___________.
Classification of periodic table based on atomic number is given by:
Alkali and alkaline earth metals are ________ elements.
Lanthanoids are also called as ___________.