Question
Question: In modern periodic table, the element with atomic number Z = 118 will be :...
In modern periodic table, the element with atomic number Z = 118 will be :
A
Uuo ;Ununoctium ; alkaline earth metal
B
Uno ;Unniloctium ; transition metal
C
Uno ;Unniloctium ; alkali metal
D
Uuo ;Ununoctium ; noble gas
Answer
Uuo ;Ununoctium ; noble gas
Explanation
Solution
Z = 118 [Rn]86 5f14 6d10 7s2 7p6 ; as last electron enters in p-subshell, it belongs to p-block. Thus its group number will be 10 + 2 + 6 = 18. Hence the element is a noble gas.