If you use it as greeting both are correct.
Different is if you wanna say something like "today is a good day" = "oggi è un buon giorno"
(In this case "buon" is an adjective so it has to be separate )
August 19, 2018
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La parola corretta è Buongiorno (tutto unito)
Elisa
August 23, 2018
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Hi Thaynà :)
i the first example "buon" is an adjective, and it's used in sentences as "Oggi è un buon giorno per studiare!" - "Today is a good day for studying";
"Buongiorno" is litterally "Good morning" :))
I hope i've helped you!
bye!
August 22, 2018
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Both are correct... But the last one is better
August 21, 2018
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