Element a is Lithium Li with 3 electrons, 1 valence electron, valency 1 and atomic number 3. Element b is Carbon C with 6 electrons, 4 valence electrons, valency 4 and atomic number 6. Element c is Phosphorus P with 15 electrons, 5 valence electrons, valency 3 and atomic number 15. Element d is Fluorine F with 9 electrons, 7 valence electrons, valency 1 and atomic number 9.
Find the following information for the elements shown in Fig. 8.17: (i) Name of the element (ii) Symbol (iii) Total number of electrons (iv) Number of valence electrons (v) Valency of the element (vi) Number of protons (vii) Atomic number
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For element a: Lithium, symbol Li, total electrons 3, valence electrons 1, valency 1, protons 3, atomic number 3. For element b: Carbon, symbol C, total electrons 6, valence electrons 4, valency 4, protons 6, atomic number 6. For element c: Phosphorus, symbol P, total electrons 15, valence electrons 5, valency 3, protons 15, atomic number 15. For element d: Fluorine, symbol F, total electrons 9, valence electrons 7, valency 1, protons 9, atomic number 9.
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