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can anyone suggest some ways to calculate valency or the number of cations or anions in an element ?(i know to series of elements in the periodic table by heart eg . h he li be b c n o f.........)

can anyone suggest some ways to calculate valency or the number of cations or anions in an element ?(i know to series of elements in the periodic table by heart eg . h he li be b c n o f.........)

Grade:8

1 Answers

Sumit Majumdar IIT Delhi
askIITians Faculty 137 Points
6 years ago
Dear student,
In case you know the atomic number of an object, you can use the aufbau principle to calculate the number of valence electrons and the shell in which the valence electrons are present. Once you know the valence electrons and the valence shell, you can find the valencies shown by the element.
Regards
Sumit

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