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Chemistry
Which of the following is true about the element with atomic number 18 ?
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Q. Which of the following is true about the element with atomic number 18 ?
Classification of Elements and Periodicity in Properties
A
It has a very low ionisation potential
B
It has a very high electron affinity
C
Its molecules are monoatomic
D
Its electronegativity is very high
Solution:
Element with atomic number 18 is Noble gas (Ar)