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प्रश्न
Choose the correct option
The number of valence electrons in O2- is :
विकल्प
6
8
10
4
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उत्तर
6
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संबंधित प्रश्न
Name the sub-atomic particle whose charge is -1.
An atom X has three electrons more than the noble gas configuration. What type of ion will it form?
The electronic configuration of nitrogen is (2, 5). How many electrons in the outer shell of a nitrogen atom are not involved in the formation of a nitrogen molecule?
Name or state the following:
Ion formed by the gain 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.
What are the noble gases?
Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in to discovery of
All non–metals will have ______ electrons in the outermost orbit of their atoms.
Helium has two electrons in the outermost orbit and so it is chemically inert.
Assertion: Helium has four electrons in the outermost orbit.
Reason: Neon has eight electrons in the outermost orbit.
