Which of the following statements relating to the Modern Periodic Table is/are <strong>CORRECT</strong>?<br>1. The atomic radius increases on moving from left to right across a period.<br>2. Germanium, Tellurium, and Copper are transition metals.<br>3. The two isotopes of Chlorine occupy the same position in the periodic table.<br>4. The metallic property of Ca, Ba, Be and Sr follows the order: Be \lt Ca \lt Sr \lt Ba.<br>Select the answer using the codes given below :
- A. 3 only
- B. 1 and 4
- C. 2 and 3
- D. 3 and 4 ✓
Correct Answer: D. 3 and 4
Explanation
Statement 1 is false because atomic radius decreases across a period. Statement 2 is false as Germanium and Tellurium are metalloids. Isotopes occupy the same position (Statement 3), and metallic character increases down a group (Statement 4).
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