Chemistry · s, p, d and f block elements
Elements with atomic numbers 9,17,35 53 are collectively known as:
Elements with atomic numbers 9,17,35 53 are collectively known as:
- A. chalcogens
- B. halogens
- C. lanthanides
- D. rare gases
Step-by-step solution
Atomic numbers 9 (fluorine), 17 (chlorine), 35 (bromine), and 53 (iodine) are all elements in Group 17 of the periodic table, which are collectively known as halogens.
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