The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu. what is the binding energy (in j) of a 61co nucleus? (
1 answer:
With the given equations the binding energy is .
Step 1: The given data is:
The proton's mass 1.00728 amu
The neutron's mass 1.00867 amu
The mass of a cobalt-61 nucleus is 60.9325 amu
Step 2: Calculate binding energy
The mass defect = the difference between the mass of a nucleus and the total mass of its constituent particles.
Cobalt61 has 27 protons and 34 neutrons.
The mass of 27 protons = 27*1.00728 u = 27.19656 u
The mass of 34 neutrons = 34*1.00867 u = 34.29478 u
Total mass of protons + neutrons = 27.19656 u + 34.29478 u = 61.49134 u
Mass of a cobalt61 nucleus = 60.9325 amu
Mass defect = Δm = 0.55884 u
ΔE =c²*Δm
ΔE =
Step 3: Calculate binding energy per nucleon
ΔE
binding energy
The binding energy per nucleon
To learn more about binding energy calculation, click here:
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Answer:
Atom is the smallest particle of matter.
Elements are made up of same atoms.
Atom consist of electron, proton and neutron.
Explanation:
Atom was first discovered by John Dalton.
word "Atom" came from Greek word, that means something that could not split. he explained that atom is indivisible particle.
In the end of 18th century J.J. Thomson put forward a new concept of atom. he said that atom have negative charged particles called electrons but overall atom is neutral.
In 1909 Rutherford with his students discovered positive charged particles and nucleus and said that it is in the center of atom.
He explain a model of atom and said that electrons revolve around a hard core in the center called nucleus.
In 1913 Niels Bohr explains the atomic spectra and put forward the concept of shells and sub-shells.
So overall Structure of an Atom is
- consist of Neutrons in nucleus
- +ve charged protons in nucleus
- A -vely charged electrons revolving around the nucleus
- the electron revolve in shells i.e. K, L, M, and N
- Each shell divide in sub-Shell such as s, p,d and f.
Atom has a specific atomic mass and atomic number
Atomic number = number of protons or electron
Atomic mass = number of protons + number of neutrons in nucleus.
