SC-75
Atoms
Lower Sec Science · Secondary 1 · Hard · Atoms
An atom of element Y has 8 protons, 8 neutrons and 8 electrons. Which statement about this atom is correct?
- Its mass number is 16 and it is electrically neutral.
- Its mass number is 8 and it is positively charged.
- Its mass number is 24 and it is negatively charged.
- Its mass number is 8 and it is electrically neutral.
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