Chemistry · Periodic Classification
Which of the following properties show a regular, monotonic trend (either continuously increasing or decreasing) down the group for the first four elements of Group 17? (A) Covalent radius (B) Electron gain enthalpy (electron affinity) (C) Ionic radius (D) First ionization energy Choose the correct answer from the options given below:
- 1B and D only
- 2A, C and D only✓
- 3B only
- 4A, B, C and D
Correct answer
A, C and D only
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