Question

how to find num of electrons expain by eg H3O​

Answer 1

Answer:

like there is given an H30 compound them to calculate the no. of atoms in the compound look at the constants and sum them up.

eg: for H3O no. of atoms= 3+1=4.

Answer 2

Answer:

Depends on what element do you want.

Explanation: Fact is that , no. of proton = no. of electron. So oxygen has 8 proton so it will have 8 electron.

Now let me come to your example-Hydrogen has 1 proton so they have 1 electron.So 3 Hydrogen atom have 3 electron.And one oxygen atom has 8 electrons so totally H3O has 11 electrons and 11 protons.

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