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2
Q:

Which of the following statements is Incorrect?

A) Atomic size increases from top to bottom B) All the elements of a group have same valency
C) Isotopes of the same elements are placed in the same group D) Atomic radius generally decreases from left to right

Answer:   C) Isotopes of the same elements are placed in the same group



Explanation:
Subject: Chemistry
Exam Prep: AIEEE , Bank Exams
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