How many protons does 4020Ca contain?

Assessment: WAEC SSCE - Chemistry - 2009 (Objective) Subject: Chemistry

Question 1 Report

How many protons does 4020Ca contain?
Answer Details
The atomic number of an element is defined as the number of protons in the nucleus of its atom. In the symbol 4020Ca, 20 is written as a subscript, which represents the atomic number of calcium. Therefore, the number of protons in the nucleus of 4020Ca is 20. Answer: 20.
Read lesson note on Atomic Structure And Bonding (JAMB)
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