Q. 1115.0( 1 Vote )

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:

Answer :

We know that, Charge on an ion is basically charge on electron plus charge on proton.

Symbolically, Charge on an ion = Charge on electron + Charge on proton

For Hydroxide:

Proton charge = +9

Electron charge = p (let)

Ion charge = -1

So, Ion charge = electron charge + proton charge

⇒ -1 = p + 9

⇒ p = -1 – 9

⇒ p = -10

For Sodium ion:

Proton charge = +11

Electron charge = q (let)

Ion charge = +1

So, Ion charge = electron charge + proton charge

⇒ 1 = q + 11

⇒ q = 1 – 11

⇒ q = -10

For Aluminium ion:

Proton charge = +13

Electron charge = -10

Ion charge = r (let)

So, Ion charge = electron charge + proton charge

⇒ r = -10 + 13

⇒ r = 3

For Oxide ion:

Proton charge = +8

Electron charge = -10

Ion charge = s (let)

So, Ion charge = electron charge + proton charge

⇒ s = -10 + 8

⇒ s = -2

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