Asked by mani
Use the pictures below to help you answer the following question:
Which statement below is NOT true about this atom?
5eab69d2-6572-428a-9843-c02560c8d5b1
(1 point)
It has equal number of protons and electrons.
It is a stable atom.
Its atomic mass is 12N.
It is a Sodium (Na) atom.
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All Answers 1
Answered by
GPT-5 mini
AI
"Its atomic mass is 12N." is NOT true.
Explanation: the nucleus shown has 11 protons and 12 neutrons → mass number = 11 + 12 = 23, so the atom is sodium (Z = 11) and neutral (11 electrons). Its mass is 23, not 12 (and "12N" would indicate a different, unstable nitrogen isotope).
Explanation: the nucleus shown has 11 protons and 12 neutrons → mass number = 11 + 12 = 23, so the atom is sodium (Z = 11) and neutral (11 electrons). Its mass is 23, not 12 (and "12N" would indicate a different, unstable nitrogen isotope).
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