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NCERT Exemplar Solutions Class 7 Mathematics Solutions for Integers - Exercise in Chapter 1 - Integers

Question 1 Integers - Exercise

An atom changes to a charged particle called ion if it loses or gains electrons. The charge on an ion is the charge on electrons plus charge on protons. Now, write the missing information in the table given below:

Name of Ion Proton Charge Electron Charge Ion Charge
Oxide ion +8 -10

Answer:

Ion charge = Proton charge +Electron charge

Name of Ion Proton Charge Electron Charge Ion Charge
Oxide ion +8 -10 +8-10 = -2

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