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प्रश्न
Multiple Choice Questions
number of valence electrons present in magnesium is
विकल्प
two
three
four
five
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उत्तर
two
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संबंधित प्रश्न
Give the following a suitable word/phrase.
Protons and neutrons present in the nucleus.
Multiple Choice Questions
The outermost shell of an atom is known as
Mention briefly the salient features of Dalton’s atomic theory (five points)
FILL IN THE BLANK
The γ-rays are............................ radiations, like light.
ANSWER IN DETAIL
Write a note on valence shell.
Why is an atom neutral inspite of the presence of charged particles in it?
State the location of electrons, protons and neutrons in an atom.
The particle not present in an ordinary hydrogen atom is :
State how electrons are distributed in an atom. Explain in brief the rules which govern their distribution.
Select the correct answer from the choice in the bracket to complete the sentence:
An element ‘X’ has six electrons in its outer or valence shell. Its valency is __________.
