Saudis or Arabians or Saudi Arabians.
no
Natives of Laos are called Laotian.
The majority of population is Muslim who are the Saudi natives. In addition, there quite a few Christians who are mainly workers and engineers of oil firms.
tribe of natives
Their natives are called Aborigines.
Saudi Arabian.
The coins of Saudi Arabia are called hallalahs.
Natives fom Belgium are called Belgians.
People from Spain are called Spanish spaeking Natives and people from Natives lands are called Natives, Indians, or there initial tribe name.
Saudi Arabian.
they are called azerbaijanis