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प्रश्न
Fill in the following blanks in respect of an atom of an element
| No. of protons | No. of neutron | Mass number | Atomic number | No. of electrons | Symbol |
| 11 | 12 | ___________ | ___________ | ___________ | ________ |
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उत्तर
| No. of protons | No. of neutron | Mass number | Atomic number | No. of electrons | Symbol |
| 11 | 12 | 23 | 11 | 11 | Na |
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संबंधित प्रश्न
Fill in the blanks.
Isotopes are the atoms of ______ element having the ______ atomic number but ______ mass number.
The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What is its atomic number and mass number?
Fill in the blank of the following statement :
The total number of protons and neutrons in the nucleus of an atom is called its _________.
The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What are its atomic number and mass number?
Match the atomic numbers 4,8,10,15 and 19 with the following:
Element with 6 valence electrons
State why the atomic weight of an element is also termed relative atomic mass.
The diagram represents an isotope of hydrogen [H]. Answer the following:
Atomic no. = 1
Mass no. = 1
Do isotopes have the same atomic number or the same mass number?
Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:
Isotopes of hydrogen [11H, 21H, 31H]
The elementary particles such as protons and neutrons are collectively called ______.
In which one of the following, the number of protons is greater than the number of neutrons but number of protons is less than the number of electrons?
