Respuesta :

Answer:

Six natural, one synthesized

Explanation:

the first six are naturally occurring and they are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og) is  is a synthetic chemical element that was made near Moscow, Russia.

Answer:

Gavinkesslering is correct!

Explanation:

Gavinkesslering explaining is correct too!