Question

(i) Complete the following table:.

Atomic

number

Mass

number

Number of

neutrons

Number of

protons

Number of

electrons

Name of the

atomic species

9 - 10 - - -

(ii) State any two applications of isotopes.

(iii)Draw schematic atomic structure of Aluminium ion showing distribution of electrons.

(iv) Write electronic configuration of Mg​

Answer 1

Answer:

2 . 1) Isotopes of iodine are used for radiotherapy in treatment of hyperthyroidism, cancer, etc. 2) Uranium, Radium, Polonium isotopes are used in atomic reactors. 3) Cobalt isotopes are used for irradiation of food products.

4. Ne 3s2

Atomic number: 12

Symbol: Mg

Answer 2

Answer:

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