Question

How many protons are there in the following atom? 235 92 U
235
143
317
92

Answer 1

The number of protons is 92.

Step-by-step explanation:

Hello! Let's solve this!

This is the way to write an isotope

`(A)/(Z)X`

Z: represents the atomic number

A: represents the mass number

X: is the element

The number of protons is equal to the atomic number.

In this case A=235

Z=92

X=U

We conclude that in this case the atomic number is 92, so the number of protons is 92.

Answer 2

Answer: The number of protons in given isotope are 92.

Step-by-step explanation:

The general representation of an isotope is given as
`_Z^A\textrm{X}`

where,

Z = atomic number

A = atomic mass

X = symbol of an element

We are given:

Isotope =
`_(92)^(235)\textrm{U}`

Atomic number is defined as the number of protons or number of electrons present in an element. Here atomic number is 92.

Thus, Number of protons in given isotope of uranium = 92