Write the approximate mass of the proton, neutron, and electron in a.m.u.
Answer
Verified
382.5k+ views
Hint: It was presumed before that there were only two particles that are protons and electrons. Positively charged particles are called protons and negatively charged particles are called electrons. Later that only the chargeless particles were found and they are called Neutrons. The value of one atomic mass unit is constant for all the particles.
Complete step by step answer:
The mass of the protons, neutrons, and electrons in the atomic mass unit:
PROTONS:
Protons are the positively charged particles found in the nucleus of the charged atom. It is fundamentally a subatomic particle. The mass of protons in kilograms:
Expressing the mass in a.m.u(atomic mass unit):
Multiply these masses,
NEUTRONS:
A scientist named James Chadwick founded chargeless neutral particles when he bombarded the beryllium with the alpha particles. This bombardment of the particles led to extremely powerful penetrations that could not be deflected by the magnetic or electric fields.
He found these neutral chargeless particles and named them Neutrons. Neutrons are subatomic particles that have no charge.
The approximate mass of the neutron in a.m.u:
The mass of a neutron is
The mass given here is expressed in . To express the unit in a.m.u.
Therefore,
Multiply these masses,
ELECTRONS:
The negatively charged particles that revolve around the nucleus are called Electrons. The mass of the electrons:
The mass of the electrons expressed in kilograms:
The mass of electrons in a.m.u:
Multiply the values.
Note:
The mass of neutrons is slightly greater than that of the mass of protons. Protons are the part of atomic nuclei that consists of the basic particles called Quarks and Gluons. Electrons belong to a group of the lepton family of the first generation. It has no known structure and hence it is called elementary particles.
Complete step by step answer:
The mass of the protons, neutrons, and electrons in the atomic mass unit:
PROTONS:
Protons are the positively charged particles found in the nucleus of the charged atom. It is fundamentally a subatomic particle. The mass of protons in kilograms:
Expressing the mass in a.m.u(atomic mass unit):
Multiply these masses,
NEUTRONS:
A scientist named James Chadwick founded chargeless neutral particles when he bombarded the beryllium with the alpha particles. This bombardment of the particles led to extremely powerful penetrations that could not be deflected by the magnetic or electric fields.
He found these neutral chargeless particles and named them Neutrons. Neutrons are subatomic particles that have no charge.
The approximate mass of the neutron in a.m.u:
The mass of a neutron is
The mass given here is expressed in
Therefore,
Multiply these masses,
ELECTRONS:
The negatively charged particles that revolve around the nucleus are called Electrons. The mass of the electrons:
The mass of the electrons expressed in kilograms:
The mass of electrons in a.m.u:
Multiply the values.
Note:
The mass of neutrons is slightly greater than that of the mass of protons. Protons are the part of atomic nuclei that consists of the basic particles called Quarks and Gluons. Electrons belong to a group of the lepton family of the first generation. It has no known structure and hence it is called elementary particles.
Recently Updated Pages
The correct geometry and hybridization for XeF4 are class 11 chemistry CBSE
Water softening by Clarks process uses ACalcium bicarbonate class 11 chemistry CBSE
With reference to graphite and diamond which of the class 11 chemistry CBSE
A certain household has consumed 250 units of energy class 11 physics CBSE
The lightest metal known is A beryllium B lithium C class 11 chemistry CBSE
What is the formula mass of the iodine molecule class 11 chemistry CBSE
Trending doubts
The reservoir of dam is called Govind Sagar A Jayakwadi class 11 social science CBSE
10 examples of friction in our daily life
What problem did Carter face when he reached the mummy class 11 english CBSE
Difference Between Prokaryotic Cells and Eukaryotic Cells
State and prove Bernoullis theorem class 11 physics CBSE
Proton was discovered by A Thomson B Rutherford C Chadwick class 11 chemistry CBSE