Q. 44.3( 19 Votes )
Explain how the elements are classified into s, p, d and f- block elements in the periodic table and give the advantage of this kind of classification.
Classification of elements
i. The s-block contains alkali metals (period 1) and alkaline earth metals (period 2).
ii. The p-block (period 13- 18) contains metals, non- metals and metalloids.
iii. The d-block (period 3-12) contains transition metals.
iv. The f-block placed separately at the bottom of the table contains lanthanides and actinides.
Rate this question :
State the number of valence electrons, the group number and the period number of each element given in the following table:
AP - Physics & Chemistry
Elements in a group generally possess similar properties, but elements along a period have different properties. How do you explain this statement?AP - Physics & Chemistry
Comment on the position of hydrogen in periodic table.AP - Physics & Chemistry
How do you appreciate the role of electronic configuration of the atoms of elements in periodic classification?AP - Physics & Chemistry
Collect the information about reactivity of VIII A group elements (noble gases) from intend or from your school library and prepare a report on their special character when compared to other elements of periodic table.AP - Physics & Chemistry
Aluminium does not react with water at room temperature but reacts with both dil. HCl and NaOH solution. Verify these statements experimentally. Write your observation with chemical equations. From these observations, can we conclude that A / is a metalloid?AP - Physics & Chemistry
Collect information regarding metallic character of elements of 1A group and prepare report to support the idea of metallic character increases in a group as we move from top to bottom.AP - Physics & Chemistry
Without knowing the electronic configuration of the atoms of elements Mendeleff still could arrange the element nearly close to the arrangements in the Modern periodic table. How can you appreciate this?AP - Physics & Chemistry
On the basis of atomic number predict to which block the elements with atomic number 9, 37, 46 and 64 belongs to?AP - Physics & Chemistry