SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An atom has 5 protons, 7 neutrons and 5 electrons. What is the mass number of the atom?
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5
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7
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2
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12
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Explanation:
Detailed explanation-1: -Answer and Explanation: The mass number of an atom with five protons and seven neutrons is 12.
Detailed explanation-2: -AI Recommended Answer: Its atomic mass is 16.
Detailed explanation-3: -In this case the mass number would be = 5+6= 11. Was this answer helpful?
Detailed explanation-4: -(b) The mass number of an element is 18.
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