HARD
10th Maharashtra Board
IMPORTANT
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An element has its electron configuration as 2,8,2. Now answer the following question.

With which of the following elements would this element resemble?

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Important Questions on Periodic Classification of Elements

HARD
10th Maharashtra Board
IMPORTANT

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with an explanation.

3Li, 14Si, 2He, 11Na, 15P

Which of these elements belong to be period 3?

HARD
10th Maharashtra Board
IMPORTANT

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with an explanation.

1H, 7N, 20Ca, 16S, 4Be, 18Ar

Which of these elements belong to the second group?

MEDIUM
10th Maharashtra Board
IMPORTANT

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with an explanation.

7N, 6C, 8O, 5B, 13Al

Which is the most electronegative element among these?

MEDIUM
10th Maharashtra Board
IMPORTANT

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with an explanation.

4Be, 6C, 8O, 5B, 13Al

Which is the most electropositive element among these?

HARD
10th Maharashtra Board
IMPORTANT

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with an explanation.

11Na, 15P, 17C1, 14Si, 12Mg

Which of these has the largest atoms?

HARD
10th Maharashtra Board
IMPORTANT

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.

19K, 3Li, 11Na, 4Be

Which of these atoms has the smallest atomic radius?

HARD
10th Maharashtra Board
IMPORTANT

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with an explanation.

13A1,14Si,11Na,12Mg,16S

Which of the above elements has the highest metallic character?

HARD
10th Maharashtra Board
IMPORTANT

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with an explanation.

6C,3Li,9F,7N,8O

Which of the above elements has the highest nonmetallic character?