UNIT :08 | DENSITY| SOLVED EXERCISES IN TEXT QUESTIONS| CHEMISTRY CLASS 9th скачать в хорошем качестве

UNIT :08 | DENSITY| SOLVED EXERCISES IN TEXT QUESTIONS| CHEMISTRY CLASS 9th

This video covers Density and Periodic Table in-text and end-of-topic exercises in a clear and exam-focused way. Topics covered: Density • Definition and formula (Density = Mass / Volume) • SI units and unit conversions • Relationship between mass, volume, and density • Solved numerical problems • Floating and sinking concept Periodic Table • Electronic configuration • Finding group, period, and block • Valence electrons • Periodic trends (atomic radius, ionization energy, electron affinity, electronegativity) • Electropositive and electronegative elements • Basic and acidic oxides • Complete in-text and end-of-topic exercises solved step by step This lecture is ideal for Class 9 / SSC students preparing for board exams and concept revision. #Density #PeriodicTable #Class9Chemistry #ChemistryLecture #ChemistryExercise #ElectronicConfiguration #PeriodicTrends #IonizationEnergy #ElectronAffinity #AtomicRadius #SSCPart1 #BoardExamPreparation