K5 of 14 PartA Determine the number of protons and the number of neutrons in ura

Question

K5 of 14 PartA Determine the number of protons and the number of neutrons in uranium-235 Express your answers, separated by a comma, as integers Np. N92.143 protons, neutrons Correct All isotopes of uranium have 92 protons because an element is identified by the number of protons i e., its atomic number). The mass number, which is the sum of the number of protons and neutrons can vary for all elements because the number of neutrons can vary, and these are referred to as isotopes of an element Part B Enter its symbol in the form Express your answer as an isotope. 1:36 PM AE-218

Explanation / Answer

A)

mass number, A = 235 (its given in question)

atomic number of U is 92

So, Z = 92

This is same as number of proton

number of neutron = A - Z

= 235 - 92

= 143

Answer: NP, Nn = 92, 143

B)

As found above

A = 235 (This is mass number)

Z = 92 (This is atomic number)

X = U (This is symbol)

Answer:

235

   U

92

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