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प्रश्न
Multiple Choice Questions
number of valence electrons present in magnesium is
विकल्प
two
three
four
five
उत्तर
two
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संबंधित प्रश्न
Multiple Choice Questions
The outermost shell of an atom is known as
Mention briefly the salient features of Dalton’s atomic theory (five points)
What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?
Explain the rule with example according to which electrons are filled in various energy levels
FILL IN THE BLANK
The electrons revolving in shells close to the nucleus are called ................... electrons.
ANSWER IN DETAIL
Name the three subatomic particles. How are they different from each other ?
ANSWER IN DETAIL
What is the maximum number of electrons that L shell can accommodate ? Give reasons for your answer.
Why is an atom neutral inspite of the presence of charged particles in it?
Compare an electron and a proton in respect of mass and charge.
Select the correct answer from the choice in the bracket to complete the sentence:
Magnesium atom with electronic configuration 2, 8, 2 achieves stable electronic configuration by losing two electrons, thereby achieving stable electronic configuration of the nearest noble gas _______.
