No, he was a muggle.
Yes he is a half-blood wizard. He was the son of Merope Gaunt, a pure-blood witch and a descendant of Salazar Slytherin and a muggle Tom Riddle Sr.
Tom Riddle Sr. he was a muggle.
Tom Riddle Sr. married Merope, Marvolo Gaunt's daughter. Tom Riddle Jr. (A.K.A. Voldemort) never married.
Merope Gaunt and Tom Riddle Sr.
because she was a wizard
Cecilia
Tom Riddle Sr and his parents
Tom Riddle SR (Voldemort's father) and his [TR SR] parents.
Tom's mother was Merope Gaunt who was a squib. Her father was Marvolo Gaunt, who was the namesake of Tom's middle name. They were decsendents of Salazar Slytherin and Merope was disowned for using a love potion to make a muggle, Tom Riddle fall in love with her. Right after she had Tom jr. she ran out of love potion and Tom sr. left her.
Lord Voldemort's parents, Tom Riddle Sr. and Merope Gaunt, die under tragic circumstances. Merope, who was a descendant of Salazar Slytherin, used a love potion to seduce Tom Riddle Sr., but after he abandoned her, she gave birth to Voldemort and died shortly after from despair. Riddle Sr. was later murdered by Voldemort himself when he sought to eliminate any ties to his past, making his death a direct result of his son's actions.
voldemort's childhood name was 'Tom Marvolo Riddle' he was named tom after his father, and marvolo after his grandfather
Marvolo Gaunt was a pure-blood wizard and descendant of Salazar Slytherin. He was the maternal grandfather of Tom Marvolo Riddle,