Brij Bihari Agrawal Solutions for Chapter: Periodic Classification of Elements, Exercise 2: Summative Assessment
Brij Bihari Agrawal Chemistry Solutions for Exercise - Brij Bihari Agrawal Solutions for Chapter: Periodic Classification of Elements, Exercise 2: Summative Assessment
Attempt the free practice questions on Chapter 5: Periodic Classification of Elements, Exercise 2: Summative Assessment with hints and solutions to strengthen your understanding. SCIENCE CHEMISTRY Part-II solutions are prepared by Experienced Embibe Experts.
Questions from Brij Bihari Agrawal Solutions for Chapter: Periodic Classification of Elements, Exercise 2: Summative Assessment with Hints & Solutions
State any limitations of Mendeleev's classification.
How does electronic configuration of atoms change in period with increase in atomic number?
What are 'groups' and 'periods' in the periodic table ?
Two elements M and N belong to groups I and Il respectively and are in the same period of the periodic table. How do the following properties of M and N vary?
(i) Sizes of their atoms.
(ii) Their metallic characters.
(iii) Their valencies in forming oxides.
(iv) Molecular formulae of their chlorides.
Compare and contrast the arrangement of elements in Mendeleev's periodic table and the modern periodic table.
How valency of an element can be found out from its electronic configuration? Give three examples.
Atomic number is considered to be a more appropriate parameter than atomic mass for classification of elements in a periodic table. Why?
How does atomic size of elements vary on moving from (i) left to right in a period.
(ii) from top to bottom in a group. Give reason for your answer.
