EASY
10th Uttarakhand Board
IMPORTANT
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What is modern period law? Clarify the meaning of 'groups' and 'periods' in modern periodic table.

Important Questions on Periodic Classification of Elements

EASY
10th Uttarakhand Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 5 - Periodic Classification of Elements>Uttarakhand Board-2019>Q 2
Write the name of elements present in first period of modern periodic table.
EASY
10th Uttarakhand Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 5 - Periodic Classification of Elements>Uttarakhand Board-2019>Q 3
The electronic configuration of an element is 2, 8, 7. Write its period and group in the periodic table.
EASY
10th Uttarakhand Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 5 - Periodic Classification of Elements>Uttarakhand Board-2019>Q 4
An element 'M' is present in third group of the periodic table. Write the formula of its oxide.
EASY
10th Uttarakhand Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 5 - Periodic Classification of Elements>Uttarakhand Board-2020>Q 5
Write the name of two noble gases.
EASY
10th Uttarakhand Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 5 - Periodic Classification of Elements>Uttarakhand Board-2020>Q 6
What were the criteria used by Mendeleev in creating his Periodic Table?