EASY
10th CBSE
IMPORTANT
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As we move from left to right in a period in modern periodic table, atomic sizes of the elements generally 

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Important Questions on Periodic Classification of Elements

EASY
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 5 - Periodic Classification of Elements>SUMMATIVE ASSESSMENT MOCK TEST>Q 36
As we move from top to bottom in a group in modern periodic table, generally atomic size of elements 
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 5 - Periodic Classification of Elements>SUMMATIVE ASSESSMENT MOCK TEST>Q 37
Which group of elements in modern periodic table is referred 'alkali metals'?
EASY
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 5 - Periodic Classification of Elements>SUMMATIVE ASSESSMENT MOCK TEST>Q 38
Group 17 elements are also called as
EASY
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 5 - Periodic Classification of Elements>SUMMATIVE ASSESSMENT MOCK TEST>Q 39
Group 18 elements are also called as
EASY
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 5 - Periodic Classification of Elements>SUMMATIVE ASSESSMENT MOCK TEST>Q 40
Which three groups of the Periodic table contain the most elements classified as metalloids (semimetals)? 
HARD
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 5 - Periodic Classification of Elements>SUMMATIVE ASSESSMENT MOCK TEST>Q 41
Which element has the highest first ionisation energy?
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 5 - Periodic Classification of Elements>PRACTICAL SKILL BASED MCQs>Q 1
Which of the following statement is not correct statement about the trends when going from left to right across the periods of periodic table?
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 5 - Periodic Classification of Elements>PRACTICAL SKILL BASED MCQs>Q 2
Element X forms a chloride with the formula XCl2 which is solid with a high melting point. X would most likely be in the same group of the periodic table as