તત્વોનું વર્ગીકરણ અને ગુણધર્મોમાં આવર્તિતા

રસાયણ વિજ્ઞાન ધોરણ 11 સિમેસ્ટર 1

રસાયણ વિજ્ઞાન

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તત્વોનું વર્ગીકરણ અને ગુણધર્મોમાં આવર્તિતા

Mg ની

bold increment subscript bold i bold H subscript bold 1

અને

bold increment subscript bold i bold H subscript bold 2

નાં મૂલ્યો અનુક્રમે 178 અને 348 kcal mol^-1 છે, તો

bold Mg subscript bold left parenthesis bold s bold right parenthesis end subscript bold space bold rightwards arrow bold space bold Mg to the power of bold 2 bold plus end exponent bold space bold plus bold space bold 2 bold e to the power of bold minus

માટે જરૂરી ઊર્જા ગણો.

526

bold Mg bold space bold rightwards arrow bold space bold Mg to the power of bold plus bold space bold plus bold space bold e to the power of bold minus bold comma bold space bold increment subscript bold i bold H subscript bold 1 bold space bold equals bold space bold 178 bold space bold kcal bold space bold mol to the power of bold minus bold 1 end exponent bold Mg to the power of bold plus bold space bold rightwards arrow bold space bold Mg to the power of bold 2 bold plus end exponent bold space bold plus bold space bold e to the power of bold minus bold comma bold space bold increment subscript bold i bold H subscript bold 2 bold space bold equals bold space bold 348 bold space bold kacl bold space bold mol to the power of bold minus bold 1 end exponent

bold Mg bold space bold rightwards arrow bold space bold Mg to the power of bold 2 bold plus end exponent bold space bold plus bold space bold 2 bold e to the power of bold minus bold comma bold space bold increment subscript bold i bold H bold space bold equals bold space bold 526 bold space bold kacl bold space bold mol to the power of bold minus bold 1 end exponent

bold Mg bold space bold rightwards arrow bold space bold Mg to the power of bold plus bold space bold plus bold space bold e to the power of bold minus bold comma bold space bold increment subscript bold i bold H subscript bold 1 bold space bold equals bold space bold 178 bold space bold kcal bold space bold mol to the power of bold minus bold 1 end exponent bold Mg to the power of bold plus bold space bold rightwards arrow bold space bold Mg to the power of bold 2 bold plus end exponent bold space bold plus bold space bold e to the power of bold minus bold comma bold space bold increment subscript bold i bold H subscript bold 2 bold space bold equals bold space bold 348 bold space bold kacl bold space bold mol to the power of bold minus bold 1 end exponent

bold Mg bold space bold rightwards arrow bold space bold Mg to the power of bold 2 bold plus end exponent bold space bold plus bold space bold 2 bold e to the power of bold minus bold comma bold space bold increment subscript bold i bold H bold space bold equals bold space bold 526 bold space bold kacl bold space bold mol to the power of bold minus bold 1 end exponent

પરમાણ્વીય ક્રમાંક 109 હોય તે તત્વનું IUPAC નામ ..........

પ્રથમ સમૂહનાં તાતત્વો કયા નામથી પણ ઓળખાય છે ?

B, C તથા N તત્વ માટે પ્રથમ આયનીકરણ શક્તિ માટેનો સાચો ક્રમ જણાવો.

Z = 56 હોય તે તત્વ .............. વિભાગનું છે.

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