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प्रश्न
What are valence electrons?
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उत्तर
Valence electrons: The number of electrons present in the valence shell is known as valence electrons.
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संबंधित प्रश्न
Fill in the blanks of the following statements :
An atom has atomic mass number 23 and atomic number 11. The atom has_________ electrons.
Cathode rays are a beam of fast moving _________
The maximum number of electrons that can be accommodated in L shell are_________
The maximum number of electrons that can go into the M shell is _________
The subatomic particle called electron was discovered by :
An atom X has three electrons more than the noble gas configuration. What type of ion will it form?
The electronic configuration of fluoride ion is the same as that of the neon atom. What is the difference between the two?
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
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.
Give a reason why noble gases have a stable electronic configuration.
Atoms of all metals will have ______ electrons in their outermost orbit.
When an atom gains an electron it has more electrons and thus it carries a positive charge.
