Name the first and last member of the third period
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Heyaa mate!!☺️☺️
Here's ur answer--->>>
First member- Sodium(Group 1 element)
Last member - Argon (Group 18 element)
Hope it helps you out ......❤️❤️
Here's ur answer--->>>
First member- Sodium(Group 1 element)
Last member - Argon (Group 18 element)
Hope it helps you out ......❤️❤️
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