Study the information in the table below and answer the questions that follow (The letters do not represent the actual symbols of the elements). (i) What...

Study the information in the table below and answer the questions that follow (The letters do not represent the actual symbols of the elements).

(i) What chemical family do the elements A, B and C belong?
(ii) What is meant by the term ionization energy?
(iii) The 2nd ionization energy is higher that the 1st ionization energy of each. Explain
(Iv) When a piece of element C is placed in cold water, it sinks to the bottom and an
effervescence of a colourless gas that bums explosively is produced. Use a simple diagram to illustrate how this gas can be collected during this experiment.

Answers

(i) Alkaline Earth metals
(ii) This is the energy required to remove an electron from an atom in gaseous state; II
Enthalpy change when one mole of electrons are removed from atoms in a gaseous
state;
(iii) Attraction between electrons and the positive nucleus in A is higher than in both B and C OR A has the smallest atomic radius, Therefore, its outermost electrons are more strongly attracted to the nucleus hence more energy is required to remove them;

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sharon kalunda answered the question on May 21, 2019 at 12:22

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