If appearance of cobalt before nickle in Mendeelev's periodic table is a limitation then which of these two must have higher atomic mass
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Wishing you all the very best for your Upcoming exams. Do well. Prepare well. Take care of yourself and take care of your family too :-) Keep smiling and keep shining :-) It was glad knowing you mahika :-)
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Ahoy!!
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• Cobalt is placed before nickel in the modern periodic table because the atomic number of an element is equal to the number of protons present in that particular element. Cobalt has 27 protons while nickel has 28 protons.
• But the mass of cobalt is more than that of nickel because the isotopes of colbalt have higher mass than the mass of isotopes of nickel.
• we know that atomic mass is equal to the average of total atomic masses of the isotopes.
• So, cobalt was placed after nickel in mendeleev periodic table which caused problems.
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• Cobalt is placed before nickel in the modern periodic table because the atomic number of an element is equal to the number of protons present in that particular element. Cobalt has 27 protons while nickel has 28 protons.
• But the mass of cobalt is more than that of nickel because the isotopes of colbalt have higher mass than the mass of isotopes of nickel.
• we know that atomic mass is equal to the average of total atomic masses of the isotopes.
• So, cobalt was placed after nickel in mendeleev periodic table which caused problems.
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^_^
Pratham
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Same you Mahika :-) KEEP SMILING AND KEEP SHINING :-)
I hope I dream of you again ^_^ I am completely a big fan of that dark tone
:P jk
Not jk but I have not seen u I can dream of anything xD
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Chalo aab aap soo jao :-) Good night.
Bye Pratham...!! :)) ^^ :D
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