To download notes, click here NOW: SUBSCRIBE to Unacademy PLUS at:
Use Special Code :- "NEETLIVE"
(To avail 10% DISCOUNT)
To know more about Unacademy Plus, watch this video:
Talk to us on TELEGRAM App- (First Install the Telegram App)
Enter the group using the link on your BROWSER:
The periodic table is an arrangement of all the elements known to man in accordance with their increasing atomic number and recurring chemical properties. They are assorted in a tabular arrangement wherein a row is a period and a column is a group.
Elements are arranged from left to right and top to bottom in the order of their increasing atomic numbers. Thus;
Elements in the same group will have the same valence electron configuration and hence similar chemical properties.
Whereas, elements in the same period will have an increasing order of valence electrons, therefore, as the energy level of the atom increases, the number of energy sub-levels per energy level increases.
The first 94 elements of the periodic table are naturally occurring, while the rest from 95 to 118 have only been synthesized in laboratories or nuclear reactors.
Dimitri Mendeleev is widely referred to as the father of the periodic table as he put forth the first iteration of the periodic table similar to the one we use now. However, Mendeleev’s periodic law is different from the modern periodic law in one main aspect:
Mendeleev's periodic table is based on the increasing atomic mass, whereas, the modern periodic law is based on the increasing order of atomic numbers.
In this session, Ashwani Tyagi Sir deals with the various Properties of the Periodic Table.
Unacademy Plus Subscription Benefits: -
1. Learn from your favourite teacher
2. Dedicated DOUBT sessions
3. One Subscription, Unlimited Access
4. Real time interaction with Teachers
5. You can ask doubts in live class
6. Limited students
7. Download the videos & watch offline
#Plus_Subscription_In_Description #NEETLIVEDAILY
#UnacademyNEET #neetlivedaily #neet #unacademy
0 Comments