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प्रश्न
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
उत्तर
Atom
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Neutrons are .......................... particles having mass equal to that of protons.
Define the term Atomic number.
FILL IN THE BLANK
In an atom, the last shell containing electrons is called its..................shell.
WRITE SHORT ANSWER
What is an atom?
WRITE SHORT ANSWER
What do you mean by electron transition?
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
The particle not present in an ordinary hydrogen atom is :
Which of the following statement is always correct?
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`
