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  4. The symbol of an element is Une. Its atomic number is

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Q. The symbol of an element is Une. Its atomic number is

TS EAMCET 2018

Solution:

Une is a synthetic chemical element with symbol Mt (Meitnerium) and its atomic number is $109 .

$ Because in one, $U =$ un, i.e. $l , n =$ nil, i.e. 0

$e =enn$ , i. e. $9$

Its come under $d$ - block trans actinide elements. It is an extremely radioactive synthetic element which is not forund in nature and synthesised in laboratory.