what is atomic size ? please explain in short
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atomic size or atomic radius is the distance between the centre of the nucleus and the outermost shell of the atom.
hope it helps;)
hope it helps;)
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Atomic size, which is also known as atomic radius, is defined as the distance between the centre of nucleus and the outermost or valence shell.
Various units are used to measure the atomic size:
1. Angstrom
1 Angstrom = 10^(-10) m
2. Picometre
1 Picometre = 10^(-12) m
Atomic size of some elements:
1. Hydrogen ( H ) - 37 pm
2. Lithium ( Li ) - 152 pm
3. Potassium ( K ) - 231 pm
• Atomic size increases down a period whereas it decreases across a group.
Various units are used to measure the atomic size:
1. Angstrom
1 Angstrom = 10^(-10) m
2. Picometre
1 Picometre = 10^(-12) m
Atomic size of some elements:
1. Hydrogen ( H ) - 37 pm
2. Lithium ( Li ) - 152 pm
3. Potassium ( K ) - 231 pm
• Atomic size increases down a period whereas it decreases across a group.
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