2 years ago

Question 6 Unsaved How many neutrons does element X have if its atomic number is 29 and its mass number is 84? Your Answer:

Physics

1 answer:

belka [17]2 years ago

3 0

84-29=55 neutrons in nucleus

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A person observes a firework display for A safe distance of .750 km. Assuming that sound travels at 340 m/s in air what is the t

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Given that,

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3 years ago

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