Which sociologist noted that dying people pass through stages of denial, anger, bargaining, depression, and acceptance on their journey to death?

Hi!

These are known as the stages of death, and or loss. The stages mentioned above were developed by Elisabeth Kubler-Ross! 

They attempt to describe each process during a critical event in someone's life, that being mainly centred around loss.

Hopefully, this helps! =)

Smelly rocks sink in water haha!