What should be the atomic number of the next halogen if discovered in the future?
A
115
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
119
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
117
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
121
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C 117 The next halogen will have 7s27p5 outer configuration. Since the fillings of 7p-orbitals will begin after 5f and 6d-orbitals, thus the atomic number of the new halogen will be 112 (up to the fillings of 6d-orbitals ) plus 5 i.e. 117.