DIS Dhn - Chemistry - Grade-7

DIS Dhn - Chemistry - Grade-7

Sermin Sabnam
Senior Teacher, DIS EM Dhanmondi

Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.

In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level. For example, chemistry explains aspects of plant chemistry (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (cosmochemistry), how medications work (pharmacology), and how to collect DNA evidence at a crime scene (forensics).

Private Course


Last Update 09/27/2020
Completion Time 1 hour 54 minutes
Members 24

Live Class

Start Time 09/28/2020 03:30:33
End Time 09/28/2020 04:15:33
  • Lecture-1
    • 1.01 Atoms, Elements and Compounds
      10 xp
    • Atoms
    • Periodic Table
    • Compounds
    • How to get percentage composition of a compound?
  • Lecture-2
    • 1.02 More about atoms
      10 xp
    • Structure of an Atom
    • Relative atomic mass
    • Masses of an atom
    • 1.01 and 1.02 Q/A
  • Lecture-3
    • 1.03: Isotopes and Relative Atomic mass
      10 xp
    • Isotopes
    • Relative Atomic Mass
  • Lecture-4
    • 1.04: How electrons are arranged?
    • Electron Shells
    • 1.03 & 1.04 Q/A
  • Lecture-5
    • 2.2 The Ionic bond
    • Compound in Ionic Bond
    • 2.03 Ions
    • 2.02 Quiz
      10 xp
    • 2.02 Q/A