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Igoryamba
3 years ago
9

[04.05] An atom has an atomic number of 12 and a mass number of 25. How many neutrons does the atom have?​

Physics
1 answer:
gizmo_the_mogwai [7]3 years ago
6 0

Answer: is  13

Explanation:

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Since the reflected energy must be less than the energy which incident on the concrete so here we will say that the reflected waves must be of less frequency range

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