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प्रश्न
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
विकल्प
22
23
21
20
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उत्तर
23
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संबंधित प्रश्न
The subatomic particle called electron was discovered by :
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?
What are valence electrons?
An atom X has three electrons more than the noble gas configuration. What type of ion will it form?
If electrons are getting added to en element Y; then
Is Y getting oxidized or reduced?
If electrons are getting added to en element Y; then
What charge will Y migrate to during the process of electrolysis?
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
In the formation of (i) oxygen molecule (ii) carbon tetrachloride molecule, state the following:
- Electronic configuration of nearest inert gas attained.
- How many electrons are shared/transferred in bond formation
- Which type of bonds these compounds form?
- Draw their orbital diagrams.
Explain in brief the experimental proof which led to the discovery of –
Electrons
On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.
