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10th CBSE
IMPORTANT
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The element which has electronic configuration 2, 8, 2 is

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Important Questions on Periodic Classification of Elements (The Periodic Table)

MEDIUM
10th CBSE
IMPORTANT
Secondary Chemistry Class X>Chapter 5 - Periodic Classification of Elements (The Periodic Table)>QUESTIONS ON HIGHER ORDER THINKING SKILLS (HOTS)>Q 11
Which element has twice as many electrons in its second shell as in the first shell?
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10th CBSE
IMPORTANT
Secondary Chemistry Class X>Chapter 5 - Periodic Classification of Elements (The Periodic Table)>QUESTIONS ON HIGHER ORDER THINKING SKILLS (HOTS)>Q 12
Which one is more reactive element?
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10th CBSE
IMPORTANT
Secondary Chemistry Class X>Chapter 5 - Periodic Classification of Elements (The Periodic Table)>QUESTIONS ON HIGHER ORDER THINKING SKILLS (HOTS)>Q 13
Which one is more metallic element?
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10th CBSE
IMPORTANT
Secondary Chemistry Class X>Chapter 5 - Periodic Classification of Elements (The Periodic Table)>QUESTIONS ON HIGHER ORDER THINKING SKILLS (HOTS)>Q 14
Which of the following is the least reactive element?
HARD
10th CBSE
IMPORTANT
Secondary Chemistry Class X>Chapter 5 - Periodic Classification of Elements (The Periodic Table)>QUESTIONS ON HIGHER ORDER THINKING SKILLS (HOTS)>Q 15
Which one is most reactive element?
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10th CBSE
IMPORTANT
Secondary Chemistry Class X>Chapter 5 - Periodic Classification of Elements (The Periodic Table)>QUESTIONS ON HIGHER ORDER THINKING SKILLS (HOTS)>Q 16
Which oxide is more basic?
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10th CBSE
IMPORTANT
Secondary Chemistry Class X>Chapter 5 - Periodic Classification of Elements (The Periodic Table)>QUESTIONS ON HIGHER ORDER THINKING SKILLS (HOTS)>Q 17
Atomic number is the fundamental property of an element. Write the name of the scientist who proposed it.
EASY
10th CBSE
IMPORTANT
Secondary Chemistry Class X>Chapter 5 - Periodic Classification of Elements (The Periodic Table)>QUESTIONS ON HIGHER ORDER THINKING SKILLS (HOTS)>Q 18
What is the atomic number of the element of period 2 and group 17 of the periodic table.