Periodic Classification and Periodic Properties - Result Question 4
####1. The IUPAC symbol for the element with atomic number 119 would be
(2019 Main, 8 April II)
(a) unh
(b) une
(c) uun
(d) une
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Answer:
Correct Answer: 1. (b)
Solution:
- Atomic number (119) $=\underset{\text { un }}{\underset{\text { un }}{1}} \underset{\stackrel{\text { un }}{1}}{1} \underset{\text { en }}{9}$
So, symbol of the element uue
Name of the element ununennium
It is expected to be $s$-block element an alkali metal and the first element in eighth period. It is the lightest element that has not yet been synthesised.
