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Which of the following statements is/are true for atomic number 120
a) IUPAC name is unbinillium
b) It is placed in 8th period
c) Number of valence electrons are 2
d) It is placed in 7th period

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a, d

a, b, c

a, b,d

a, b, c, d

answer is A.

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Detailed Solution

Z=120

1=un;2=bi;0=nil

ubn

Position = Z-82=120-82=38

since 38 belongs to s-block ; 120 also belongs to same group

Z = 38 belongs to II_A group contains 2 valence electrons also Z =120 contains 2 valence electrons

Placed below Ra and belongs to 8 th period

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