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प्रश्न
What are inert elements?
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उत्तर
The elements have a complete outermost shell, i.e. 2 or 8 electrons. They ordinarily do not enter into any reaction.
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संबंधित प्रश्न
State whether the following statement is true or false :
The cathode rays obtained from all the gases consist of negatively charged particles called electrons.
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?
An atom X has three electrons more than the noble gas configuration. What type of ion will it form?
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
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?
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]
Which of the following statement is always correct?
In a television tube, Cathode rays are deflected by magnetic fields.
Helium has two electrons in the outermost orbit and so it is chemically inert.
