Periodic Table and Atomic Properties — Practice Quiz
Telangana Open School (TOSS) · Class 12 · Chemistry
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Quick Quiz: Periodic Table and Atomic Properties
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Which of the following is a triad according to Dobereiner?
What is the modern periodic law based on?
How many elements are there in the first period of the periodic table?
Which group contains the alkali metals?
Sample Questions
Which of the following is a noble gas?
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Neon
Noble gases are in Group 18 and have completely filled valence shells. Neon is one of them.
What is the general outer electronic configuration of s-block elements?
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ns¹⁻²
s-block elements have their differentiating electron in the s-orbital, so their configuration is ns¹ or ns².
Which block contains the transition metals?
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d-block
Transition metals are found in groups 3 to 12 and are characterized by filling of d-orbitals.
Which of the following elements is a metalloid?
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Silicon
Silicon lies along the diagonal line between metals and non-metals and shows properties of both, making it a metalloid.
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