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प्रश्न
Match the atomic numbers 4,8,10,15 and 19 with each of the following:
An element which does not form ion
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उत्तर
Atomic number 10
Electronic configuration (10): 2,8
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संबंधित प्रश्न
Complete the following table.
| Atomic number | Mass number | Number of Neutrons | Number of protons | Number of electrons | Name of the Atomic species |
| 9 | - | 10 | - | - | - |
| 16 | 32 | - | - | - | Sulphur |
| - | 24 | - | 12 | - | - |
| - | 2 | - | 1 | - | - |
| - | 1 | 0 | 1 | 0 | - |
Fill in the blanks.
Isotopes are the atoms of ______ element having the ______ atomic number but ______ mass number.
The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?
The mass number of an element is 23 and it contains 11 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?
The atom of an element X has 7 electrons in its M shell.
What is the atomic number of element X?
Sulphur has an atomic number 16 and a mass of 32.
State the number of protons and neutrons in the nucleus of sulphur. Give a simple diagram to show the arrangement of electrons in an atom of sulphur.
Name or state the following:
Elements having same mass number but different atomic number
State why the atomic weight of an element is also termed relative atomic mass.
Mass No =______ + No. of Neutrons.
If an atom has 6 electrons in its outermost shell, it is inert.
