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प्रश्न
What is an electron? State its relative mass and charge.
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उत्तर
An electron (e−) is a fundamental subatomic particle with a negative elementary electric charge. Its mass is 1/1840th of that of a hydrogen atom.
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संबंधित प्रश्न
How does an electron differ from a neutron?
The ion of an element has 3 positive charges. The mass number of atom of this element is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
If an atom contains one electron and one proton, will it carry as a whole is neutral
Write down the electronic configuration of the following:
(a) `""_13^27"Y"`
(b) `""_17^35"Y"`
Element X has electronic configurations 2, 8, 18, 8, 1. Without identifying X,
- Predict the sign and charge on a simple ion of X.
- Write if X will be an oxidizing agent or a reducing agent. Why?
An atom X has three electrons more than the noble gas configuration. What type of ion will it form?
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
An element X has 2 electrons in its M shell, it forms a bond with an element Y which has 7 electrons in its third orbit.
- Write the formula of the compound formed.
- Which nearest inert gas electronic configuration will element X and Y acquire.
- Show by orbital diagram the formation of the compound between X and Y.
The maximum number of electrons that can be present in the N shell is ______.
Select the INCORRECT statement.
