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Question 26

What is the mass number of an element if its atom contains 10 protons, 10 electrons and 12 neutrons

  • A.32
  • B. 22
  • C. 20
  • D. 10
Objective

Question details

Exam body
BUK
Subject
Chemistry
Year
2012/2013
Question no.
#26
Type
Objective
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