HARD
JEE Main/Advance
IMPORTANT
Earn 100

Explain the following:

(a) Electronegativity of elements increase on moving from left to right in the periodic table.
(b) Ionisation enthalpy decrease in a group from top to bottom?

Important Questions on Classification of Elements and Periodicity in Properties

MEDIUM
JEE Main/Advance
IMPORTANT
Beta Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>EXERCISE-4>Q 25
How does the metallic and non-metallic character vary on moving from left to right in a period?
MEDIUM
JEE Main/Advance
IMPORTANT
Beta Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>EXERCISE-4>Q 26
The radius of Na+ cation is less than that of Na atom. Give reason.
HARD
JEE Main/Advance
IMPORTANT
Beta Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>EXERCISE-4>Q 31
Discuss the factors affecting electron gain enthalpy and the trend in its variation in the periodic table.
HARD
JEE Main/Advance
IMPORTANT
Beta Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>EXERCISE-4>Q 32
 Define ionisation enthalpy. Discuss the factors affecting ionisation enthalpy of the elements and its trends in the periodic table.
MEDIUM
JEE Main/Advance
IMPORTANT
Beta Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>EXERCISE-4>Q 33
Write down the outermost electronic configuration of alkali metals. How will you justify their placement in group 1 of the periodic table?
MEDIUM
JEE Main/Advance
IMPORTANT
Beta Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>EXERCISE-4>Q 34
Discuss and compare the trend in ionisation enthalpy of the elements of group 1 with those of group 17 elements.
 
EASY
JEE Main/Advance
IMPORTANT
Beta Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>EXERCISE-4>Q 35
 Amongst the following elements whose electronic configurations are given below, the one having the highest ionisation enthalpy is