TS EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
What is the atomic number of the element with symbol Uus?
- A 117
- B 116
- C 115
- D 114
Answer & Solution
Correct Answer
(A) 117
Step-by-step Solution
Detailed explanation
The atomic number of the element Uus is 117. Ununseptium (Uus) is the second heaviest known element and penultimate element of the 7 th period of the periodic table. Electronic configuration of Uus \(=[\mathrm{Rn}] 5 f^{14} 6 d^{10} 7 s^2 7 p^5\)
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