MEDIUM
10th Maharashtra Board
IMPORTANT
Earn 100

Ongoing through the modern periodic table it is seen that the elements Li, Be, B, C, N, O, F and Ne belong to period-2. Write down the electronic configuration of all of them.

Important Questions on Periodic Classification of Elements

MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Can you tell?>Q 2
Is the number of valence electrons the same for all the second-period elements?
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Can you tell?>Q 3
Is the number of shells are same for the period 2 elements?
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Can you recall?>Q 1
What are the values of ‘n’ for the shells K, L and M?
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Can you recall?>Q 2
What is the maximum number of electrons that can be accommodated in a shell? Write the formula
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Can you recall?>Q 3
Deduce the maximum electron capacity of the shells K, L and M.
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Think about it>Q 1
What is the relationship between the electronic configuration of an element and its valency?
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Think about it>Q 2
The atomic number of beryllium is 4 while that of oxygen is 8. Write down the electronic configuration of the two and deduce their valency from the same.
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Think about it>Q 3
Write the electronic configuration of the first 20 elements, symbol, and write the valency. Make the table on the basis of the modern periodic table.