☰
Classification of Elements and Periodicity in Properties
Among the elements of second period i.e. from Li to Ne, pick out the elements:
(a) with the highest first ionisation enthalpy
(b) with the highest electronegativity
(c) with the largest atomic radius
(d) which is the most reactive non-metal
(e) which is the most reactive metal ?
The elements of the second period are:
Li, Be, B, C, N, O, F, Ne
(a) The element with highest first ionisation enthalpy: Neon (Ne).
(b) The element with highest electronegativity: Fluorine (F).
(c) The element with largest atomic radius: Lithium (Li).
(d) The most reactive non-metal: Fluorine (F).
(e) The most reactive metal: Lithium (Li).
Sponsor Area
Which property is the basis of long form of periodic table?
How many elements are placed in each period of the p-block?
What is the number of groups in: (i) p-block (ii) d-block?
How many elements are present in:
(i) second period
(ii) fourth period
(iii) sixth period?
What is the name given to the s-block elements?
To which block the element with outer electronic configuration 4s23d10 belongs?
Why are there 10 elements in each series of d-block?
In terms of electronic configuration,
what is common in a given period and group?
Give the general electronic configuration of
(i) Transition elements (ii) Inner transition elements.
Name the group and period to which an element with Z = 15 belongs ?
Sponsor Area
Sponsor Area