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210.3. Chemical periodic table and structure of the atom.

Write the answer!

In which group does chemical element Kr belongs to (answer must be written in arabic numbers, addition with A/B subgroups symbol, e.g. VIIB.)!
Insight in substances microstructure.
Periodic table of chemical elements and atom structure.

Solve tasks to find hidden Geo point coordinates

  1. Chemistry: Chemical periodic table and structure of the atom.
  2. Geometry: Parallelogram, diamond, triangle, right-angled triangle, trapeze area.
  3. Physics: Gravitation, friction and deformation.
  4. Algebra: Reverse proportionality concept.
  5. Algebra: Hyperbola.
  6. Algebra: Albraic fraction.
  7. Algebra: Rational numbers.
  8. Chemistry: Neutralisation reactions and calculations.
  9. Geometry: Rectangular (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formula.
  10. Chemistry: Substances with constant composition. Chemical formula.