Table of Contents
How many groups are there in p-block class 12?
six groups
Consequently there are six groups of p–block elements in the periodic table numbering from 13 to 18. Boron, carbon, nitrogen, oxygen, fluorine and helium head the groups.
What is p-block elements in chemistry class 12?
Group 15 includes nitrogen, phosphorus, arsenic, antimony and bismuth. As we go down the group, there is a shift from non-metallic to metallic through metalloidic character. Nitrogen and phosphorus are non-metals, arsenic and antimony metalloids and bismuth is a typical metal. of the apatite family, Ca9(PO4)6.
How do you remember the p-block elements?
To remember the trend, first arrange the elements in the order in which they are present in the group: B, Al, Ga, In, Tl. Next, switch the places of Ga and Tl – and you get the correct order of the melting point. There are different types of silicates and remembering them is important.
Why it is called p-block?
The s-block and p-block elements are so called because their valence electrons are in an s orbital or p orbital respectively. They are also called Typical Elements to distinguish them from the transition and inner transition series.
How many families are In p-block?
Each group of p-block elements is recognized by its first element. Group 13 is called Boron Family, group 14 is called Carbon Family, group 15 is called Nitrogen Family, Group 16 is called Oxygen Family, group 17 is called Halogen or fluorine Family, group 18 is called Noble Gas Family or Neon Family.
Why p-block elements are called p-block elements?
How do I learn p-block class 12?
- Focus on p- block elements chapters of NCERT class 11 and 12 chemistry textbook.
- Read the chapters at least once.
- Try to read again but this time try to understand meaning and important points.
- After this study the important points, keeping in mind their structures, tabulations, properties, uses etc.
What is the fastest way to learn P block?
Is P block hard?
P block is a very scoring chapter. If you will give around 7-8 hours in these 3 days to these chapters only, then you might be able to complete it. On 1st day, you can study all the across and up to down rules and then start attempting the previous year questions.
Who discovered p-block elements?
Gallium (Ga; Mendeleev’s eka-aluminum) was discovered in 1875 by the French chemist Paul Émile Lecoq de Boisbaudran during a systematic search for Mendeleev’s “missing” element in group 13.
How many families are in p-block?
What does the p-block mean?
p-block elements are those in which the last electron occupies p-orbitals and are found in groups 13, 14, 15, 16, and 17 (except helium). Because p-block orbitals can only hold a maximum of six electrons, p-block elements are classified into six groups.
Is Class 12 p-block easy?
No doubt it is difficult because “studying” Pblock is nothing but memorizing it.
What is the fastest way to learn p-block?
Can I finish P block in 1 day?
P block is a very scoring chapter. If you will give around 7-8 hours in these 3 days to these chapters only, then you might be able to complete it. On 1st day, you can study all the across and up to down rules and then start attempting the previous year questions. Hope this helps!
Can I complete P block in 1 day?
Hi, Yes, you can study haloalkane and p-block in 1 day.
Can I finish p-block in 1 day?
Can I complete p-block in 1 day?
What is the general electronic configuration of p-block elements 12 classes?
P – block elements 12 Classes 1 ASHRITA R.P 2 The p-block elements are placed in groups 13 – 18 . The general electronic configuration is ns 2 np1 – 6. 3 Nitrogen family: configuration is ns2np3.
What are the common metalloids in p-block elements?
Common metalloids in p-block elements are Si, Ge, As, Sb, Te, Po, At. • Differencesin behaviour offirst elementof each group: (a) Covalence upto four: First member of each group belongs to second period elements and have only four valence orbitals i.e., one 2s and three 2p orbitals.
Why do group 14 elements have higher interatomic forces than group 13?
50. The m. p and b. p of group 14 elements are higher than those of corresponding elements of group 13. This is due to strong interacting binding forces in their solids as well as in liquid states. Down the group, there is regular decrease in m. p and b. p as the size of atoms increases and interatomic forces of attraction decreases.
Why do p-block elements show Covalence above four?
For example elements of third period of p-block with the electronic configuration 3s2 3px has vacant 3d-orbitals lying between 3p and 4s energy levels. Therefore, they can easily expand their octets and can show covalence above four.