Q4 of 40 Page 130

Draw the structure of oxygen and sulphur atoms.

Structure of oxygen atom:

Structure of sulphur atom:

List the uses of isotopes?

What is isotone? Give an example

Calculate the number of neutrons, protons and electrons (i) atomic number 3 and mass number 7 (ii) atomic number 92 and mass number238.

Calculate the volume of oxygen required for the complete combustion of 20 cm³ of methane[CH_4(g) + 2O₂ → CO_2(g) +2H₂O_(g)].

Questions · 40

5. Atomic Structure

1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 1 1 1 1 1 1 2 3 4 5 1 2 3 4 5 1 2 3 1 2 3 1 2 3