CBSE Class 10 - Modern Periodic Table of Elements Videos
Definition and Trend of Atomic Size in Modern Periodic Table
This video explains atomic size and its trend across the group and period of the modern periodic table.
- what is elements
- what is periods
- what is periods
- Modern period table
-
1. Electronic configuration of an element ‘x’ is 2.8.1 and for ‘Y’ 2.8.7 then mention
the bond existing between 2 elements.
a) Covalent bond b) Ionic bond
c) Hydrogen bond d) Metallic bond
2. Identify the element in a 2nd period and 14th group with valency 4.
a) Carbon –C b) Silicon – Si
c) Boron – B d) Fluorine – F
3. Modern periodic law state that “the properties of elements are the periodic function
of their ___________.
a) Atomic number b) Atomic mass
c) Valiancy d) Atomic radius. Name the group of hydrogen.
9. In a Modern periodic table how the ionization energy, metallic nature and atomic
radius vary?
10. 6
C
12
, 20Ca40
, 21SC45 Write the Electronic configuration of given elements and mention
the group period and block
- How tp learn the symbols element
- drawbacks of mendeleev and modern periodic table with example
- Que:-How it can be proved that the basic structure of the Modern Periodic Table is based on the electronic configuration of atoms of different elements?
- how does the atomic size vary as you go down a group?
- Just as the way we locate a point on graph as (x, y), can we locate an element as (group number, period)?
