Question

Give the nuclear symbol (isotope symbol) for the isotope of bromine, Br, that contains 46 neutrons per atom.

Answer 1

Isotopes are atoms of the same element with different numbers of neutrons.

Atoms are made of 3 types of sub atomic particles ; electrons, protons and neutrons

atomic number (a) is the number of protons of the atom. Atomic number is characteristic for that element

protons and neutrons both have similar masses and they are located in the nucleus. the atomic mass or the mass number (b) is the sum of the protons and neutrons.

the standard form for the element (X) is as follows

ᵇₐX

the atomic number of Br is 35

the number of protons are 35. Number of neutrons are 46.

mass number of Br is the sum of protons and neutrons.

therefore mass number of Br is - 35 + 46 = 81

the nuclear symbol for Br is as follows

⁸¹₃₅Br

Answer 2

The number of protons that Bromine (Br) has = 35
The mass number of Bromine (Br) is = 35 +46 = 81
Then we can write the nuclear symbol or isotope symbol of Bromine (Br) as (superscript 81)(subscript 35)Br. I hope that this answer is the one you were looking for and it has come to your help.