A certain element has 52 protons, 52 electrons, and 76 neutrons. its atomic mass is _____. 52 76 128 104
2 answers:
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 = atomic mass = number of protons + number of neutrons -----(1)
A = atomic number = number of protons = number of electrons----(2)
<u>Given data:</u>
Protons = 52
Electrons = 52
Neutrons = 76
Based on equation (1)
Atomic mass = 52 + 76 = 128
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