Does a girl's not wearing the hijab, despite her regular prayer and recitation of the Quran, her good behavior, and her avoidance of backbiting and gossip, lead to her entering Hellfire?

Muslim men and women must submit to the commands of Allah and His Messenger without hesitation or shame. The true believer obeys commands and avoids prohibitions, in accordance with the Almighty's saying: (It is not for a believing man or a believing woman, when Allah and His Messenger have decided a matter, that they should [thereafter] have any choice about their affair). A Muslim should not look at the smallness of the sin, but rather at the greatness of the One he disobeys, for a sin may be trivial in the eyes of the servant, yet it is great in the sight of Allah. The disobedient Muslim is under Allah's will in the Hereafter, as long as he has not committed anything that would take him out of the fold of Islam. Sins are divided into minor sins, which are expiated by good deeds, and major sins, which are only expiated by sincere repentance. It cannot be definitively asserted that a woman who abandons the hijab will enter Hellfire, but she is deserving of Allah's punishment for disobeying His command. Hijab is an obligation for the believing Muslim woman, and whoever believes in Allah and His Messenger must adhere to what He has commanded: "And do not display yourselves as [was] the display of the former times of ignorance."