EVERYDAY SCIENCE

Detailed explanation-1: -In the above given case when element from group 2 reacts with the element of group 17, it will form a ionic bond due to the huge electronegativity difference.

Detailed explanation-2: -(a) The resulting compound is an ionic compound because the elements of group 2 (metals) combine with those of group 17 (non-metals) by the transfer of electrons, an ionic bond is formed.

Detailed explanation-3: -Answer and Explanation: Ionic bond is formed between metal and non-metal. Elements of group 2 and group 6 will most likely to form an ionic bond.

Detailed explanation-4: -Fluorine, Chlorine, Bromine and Iodine belonging to Group VIIA has seven valence electrons. These elements need one valence electron to complete an octet of electrons. They share one of the seven valence electrons with other atoms to form one covalent bond.

Detailed explanation-5: -Group 2 elements almost exclusively form ionic compounds containing the M2+ ion, they are more reactive toward group 15 elements, and they have a greater tendency to form complexes with Lewis bases than do the alkali metals.