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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
Fill in the blank of the following statement :
Cathode rays are a beam of fast moving _________.
Name the sub-atomic particle whose charge is -1.
Give the symbol and charge of each particle.
What are valence electrons?
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
Choose the correct answer from A, B, C and D:
When a metal atom becomes an ion:
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
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.
Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in to discovery of
