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In sodium there are 11 electrons
In chlorine there are 17 electrons
There are 17 protons in chlorine
There are 11 protons in sodium

I’m not sure what an octet is I study in a British system if there’s anything else you’re not sure of search the Internet it has all the answers

In sodium there are 11 electrons  

In chlorine there are 17 electrons  

There are 17 protons in chlorine  

There are 11 protons in sodium