how many protons, electrons, and neutrons are in the following isotopes.

Question

uranium-235
hydrogen-3
silicon-29

Answer 1

The number of protons is the atomic number.
The mass number is the number of protons + the number of neutrons.
The number of electrons is the same as the number of protons(in a neutral element).

Answer 2

so for uranium would it be
protons 92
electrons 145
neutrons 145

Answer 3

Did you read what I wrote?
The number of protons is the atomic number. 92 is correct.
The number of electrons is the same as the number of protons which must be 92.
The number of neutrons is mass number-atomic number = 235-92=143.

Answer 4

sorry i must have misread it
but thank u soooo much