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12th Class Chemistry Quiz Question.

http://interviewquestionsanswers.org/quiz/12th-Class http://interviewquestionsanswers.org/qu … -Chemistry

Question:
The physical and chemical properties of elements are the periodic function of their atomic _________

Option A):
atomic masses.
Option B):
number
Option C):
masses
Option D):
atomic number

Correct Answer is Option B):
number