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प्रश्न
Name the particles which actually determine the mass of an atom.
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उत्तर
The particles which actually determine the mass of an atom are neutrons and protons.
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संबंधित प्रश्न
Explain the Mass number with example.
Dalton said that ______ could not be divided.
FILL IN THE BLANK
Atomic theory of matter was given by ..........................
The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What are its atomic number and mass number?
From the symbol `""_2^4"He"` for the element helium, write down the mass number and the atomic number of the element.
Which of the following are true for an element?
- Atomic number = number of protons + number of electrons
- Mass number = number of protons + number of neutrons
- Atomic mass = number of protons = number of neutrons
- Atomic number = number of protons = number of electrons
Explain the following terms.
- Proton
- Electron
- Neutron.
The elementary particles such as protons and neutrons are collectively called ______.
K and L shells can accommodate a maximum of 2 and 8 electrons respectively.
State the term for the following:
The amount of substance which contains the same number of units as the number of atoms in carbon-12.
