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प्रश्न
Fill in the blank
The outermost shell of an atom is known as............................
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उत्तर
The outermost shell of an atom is known as valence shell.
APPEARS IN
संबंधित प्रश्न
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
Multiple Choice Questions
The outermost shell of an atom is known as
Mention briefly the salient features of Dalton’s atomic theory (five points)
ANSWER IN DETAIL
What is the maximum number of electrons that L shell can accommodate ? Give reasons for your answer.
Draw the electronic configuration of the following elements clearly stating the number of neutrons and protons in their nucleus.
a. Beryllium b. Silicon
c. Chlorine d. Aluminium
e. Nitrogen
ANSWER IN DETAIL
Write a note on valence shell.
Compare an electron, a proton and a neutron in respect of their relative masses and charges.
Name the sub-atomic particle whose charge is 0.
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 __________.
Write down the names of the particles represented by the following symbols and explain the meaning of superscript and subscript numbers attached.
`""_1"H"^1`, `""_0"n"^1`,`""_(-1)"e"^0`
