Q4 / 160 · TS EAMCET 2016 · Chemistry

What is the atomic number of the element with symbol Uus?

Correct answer
A
117
B
116
C
115
D
114

Solution

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 $=[\mathrm{Rn}] 5 f^{14} 6 d^{10} 7 s^2 7 p^5$

Hence, the correct answer is option: 'A'.

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