Question

Which types of compounds lose electrons when they form ions? Which types of compounds gain electrons when they form ions? Explain why.

Answer 1

Answer:

hope this helps

Explanation:

(i) An electropositive element loses an electron to form cation. Na is one such element, which forms Na

+

cation.

(ii) An electronegative element gains an electron to form an anion. Cl is one such element, which forms Cl

−

anion.

(iii) When an atom loses an electron, it becomes positively charged forming a cation.

(iv) When an atom gains an electron, it becomes negatively charged forming an anion.

(v) Ionic compound is formed by combination of positively & negatively charged ions i.e. cations and anions.

Answer 2

Answer:

Metal atoms lose electrons from their outer shell when they form ions : the ions formed are positive, because they have more protons than electrons. the ions formed have full outer shells. for elements in groups 1,2 and 3,the number of electrons lost is the same as the group number.