Chemistry
Complete the definitions of the periodic properties given below :
| (a) Atomic size | - the distance between | — |
| (b) Ionisation potential | - the amount of energy required | — |
| (c) Electron affinity | - the amount of energy released | — |
| (d) Electronegativity | - the tendency of an atom to attract | — |
| (e) Metallic character | - of an element is exhibited when an atom of the element loses | — |
Periodic Table
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Answer
(a) Atomic size — The distance between the centre of the nucleus of an atom and its outermost shell.
(b) Ionisation potential — The amount of energy required to remove a loosely bound electron from the outermost shell of an isolated gaseous atom.
(c) Electron affinity — The amount of energy released when an atom in the gaseous state accepts an electron to form an anion.
(d) Electronegativity — The tendency of an atom to attract electrons to itself when combined in a compound.
(e) Metallic character — Metallic character of an element is exhibited when an atom of the element loses one or more electrons when supplied with energy.
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