Back to Course Sec2 - Chem. - Ch1: Atomic Structure 0% Complete 0/0 Steps Lecture 1 2 Topics | 2 Quizzes democritus's, Aristotle's, Boyle's, Dalton and Thomson Homework Lecture 1 Answers of HW Lecture 1 Quiz Participants 6 Ahmed Amr Jana Ahmed Passant Razan hassanein hassan Show more Sec2 – Chem. – Ch1: Atomic Structure Lecture 1 Lesson 2 of 7In Progress ← Previous Next→Lecture 1 Lesson Content 0% Complete 0/2 Steps democritus’s, Aristotle’s, Boyle’s, Dalton and Thomson Homework Lecture 1 Answers of HW Lecture 1 Quiz