An element L has 9 protons and its valency is 1. Another element M has proton 5 and valency 2. What is the difference in the number of electrons in L and M ?

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Solution

The correct option is C 4
An element L has 9 protons so it will have 9 electron. Another element M has proton 5 so it will have 5 electron so their difference in electron is 9 - 5 = 4.

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An element L has 9 protons and its valency is 1. Another element M has proton 5 and valency 2. What is the difference in the number of electrons in L and M ?

The correct option is C 4An element L has 9 protons so it will have 9 electron. Another element M has proton 5 so it will have 5 electron so their difference in electron is 9 - 5 = 4.

The correct option is C 4
An element L has 9 protons so it will have 9 electron. Another element M has proton 5 so it will have 5 electron so their difference in electron is 9 - 5 = 4.