Atoms, Molecules and Radicals — CHEMISTRY STD 7 — Question
ICSE BoardEnglish MediumSTD 7CHEMISTRYAtoms, Molecules and Radicals3 Marks
Question
What do you understand by the following terms valency, valence electrons and valence shell?
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Answer
1. Valency - The capacity of the atom of an element to form chemical bonds. 2. Valence electrons - The electrons present in the valence shell are called valence electrons. 3. Valence shell- The outer most shell of an atom is known as its valence shell.
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