respected teacher,
till what atomic no. do i need to memorize the modern periodic table for my exams..and do i need to memorize the mendeleev's perodic table , the newland's octave and the traids too....?????....if yes,then till where????....
Asked by shailesh arlekar | 27th Feb, 2015, 11:15: AM
Expert Answer:
Entire chapter is important. Study and understand it throughly.
You can memorise first 30 elements of the periodic table.
Answered by Hanisha Vyas | 27th Feb, 2015, 09:01: PM
Application Videos
Concept Videos
- 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
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- Just as the way we locate a point on graph as (x, y), can we locate an element as (group number, period)?
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