Chemistry

Chemistry

Problem

## PASSAGE 5 Ionization energies of five elements in kcal/mol are given below :

Atom	I	II	III
P	300	549	920
Q	99	734	1100
R	118	1091	1652
S	176	347	1848
T	497	947	1500

Which element is a noble gas? a. P b. T c. R d. S

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