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प्रश्न
What are the noble gases?
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उत्तर
Noble gases are gases that have their outermost orbit completely filled i.e. have stable electronic configuration.
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संबंधित प्रश्न
How does an electron differ from a neutron?
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?
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
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.
Write down the electronic configuration of the following
- 2713X,
- 3517Y.
Write down the number of electrons in X and neutrons in Y and the formula of the compound formed by X and Y.[XY3]
Differentiate between the following term:
Electron and proton
Cathode rays are made up of
The number of electrons in an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of the element?
Helium has two electrons in the outermost orbit and so it is chemically inert.
