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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.
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उत्तर
Atom
APPEARS IN
संबंधित प्रश्न
Fill in the blank
The outermost shell of an atom is known as............................
Name three fundamental particles of the atom. Give the symbol with charge, on each particle.
WRITE SHORT ANSWER
What is an atom?
WRITE SHORT ANSWER
Describe a discharge tube.
WRITE SHORT ANSWER
Name the isotopes of hydrogen.
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
Fill in the blank of the following statement :
The electron has _________ charge, the proton has _________ charge, and the neutron has _________ charge.
Explain in brief – Goldstein’s experiment which led to the discovery of the proton.
If an atom ‘A’ has an atomic number of eleven, state the number of protons and electrons it contains.
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`
