Q.

Two new elements (discovered in Aug 2003) with atomic number 113 and 115 are to be placed in

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a

s-block

b

p-block

c

d-block

d

f-block

answer is B.

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Detailed Solution

113:[Rn]7s25d104f147p1 115:[Rn]7s25d104f147p3Thus, p-block element.Elements 113, 115, 117, and 118 are now formally named nihonium (Nh), moscovium (Mc), tennessine (Ts), and oganesson (Og).
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