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प्रश्न
Calculate the number of neutrons, protons and electrons:
- atomic number 3 and mass number 7
- atomic number 92 and mass number 238.
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उत्तर
- Number of neutrons – 4
Number of protons – 3
Number of electrons – 3 - Number of neutrons – 146
Number of protons – 92
Number of electrons – 92
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संबंधित प्रश्न
Name the three sub-atomic particles of an atom.
Fill in the blank of the following statement :
The subatomic particle not present in a hydrogen atom is ________
Name the element which does not contain any neutrons in its nucleus.
State the number of neutrons in each of the atoms A to E. Also state which of the atoms A to E is a metal.
Calculate the number of neutrons present in the nucleus of an element X which is represented as `""_15^31"X"`
Isotopes exist because atoms of the same element can have different numbers of ______.
Which subatomic particles have no charge?
α, β, γ rays are during the ratio active decay ______ of an atom.
Beryllium + α – rays → Carbon + ______.
The ratio of neutrons in C and Si with respective atomic masses 12 and 28 is ______.
