Question

A certain element has 52 protons, 52 electrons, and 76 neutrons. its atomic mass is _____. 52 76 128 104

Answer 1

Pretty sure it is 128 hope this helps you :D

Answer 2

Answer:

Atomic mass is 128

Explanation:

Atoms are composed of fundamental subatomic particles: protons, neutrons and electrons.

They are represented by a standard nuclear notation which includes the symbol of the element, its atomic number and atomic mass.

i.e. $_{Z}^{A}\textrm{X}$

Z = atomic mass = number of protons + number of neutrons -----(1)

A = atomic number = number of protons = number of electrons----(2)

Given data:

Protons = 52

Electrons = 52

Neutrons = 76

Based on equation (1)

Atomic mass = 52 + 76 = 128