Classification of Elements and Periodicity in Properties

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Question

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Question 1 : The chemistry of lithium is very similar to that of magnesium even though they are placed in different groups. Its reason is
1. Both have nearly the same size
2. Both are found together in nature
3. Both have similar electronic configuration
4. The ratio of their charge and size (i.e. charge density) is nearly the same
Answer
8460

Question 2 :

The element with atomic number 35 belongs to

1. d – Block
2. f – Block
3. s – Block
4. p – Block
Answer
8461

Question 3 : The correct order of first ionization potential among following elements, Be, B, C, N and O is
1. Be < B < C < O < N
2. Be < B < C < N < O
3. B < Be < C < N < O
4. B < Be < C < O < N
Answer
8462

Question 4 : Representative elements are those which belong to
1. s and p – Block
2. s and f – Block
3. s and d – Block
4. p and d – Block
Answer
8463

Question 5 : Which of the following properties generally decreases along a period?
1. Ionization Energy
2. Electron Affinity
3. Valency
4. Metallic Character
Answer
8464