What is the total number of protons and neutrons in the nuclide #""_35^80Br#?

Answer 1

Well, there are #"45 neutrons"#...........

The atomic number, #Z#, of bromine is #35#. And thus the subscript in #""_35^80Br# is quite superfluous.......because the symbol #Br# specifies #35# nuclear charges........

We write #""^80Br#. Because the superscripted mass number is equal to the SUM of nuclear protons and neutrons, the number of neutrons is equal to #80-Z=80-35=45# #"neutrons.........."#

If you are unclear as to how I did this problem, come again and someone will help you. This really is a simple principle, and if it seems difficult it is only because it is unfamiliar.

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Answer 2

Natalie Anton

The nuclide (^{80}_{35}Br) contains 35 protons and 45 neutrons, for a total of 80 protons and neutrons.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.