Question

Which of th following are true regarding ions and ionic compounds?

A) Ions form ionic bonds by sharing electrons. Metals tend to loose electrons and form positively charged ions (cations).

B)Ionic compounds are formed from interactions between a atleast one metal ion (cation) and non-metal ion (anion).

C)Negatively charged ions (anions) have a negative charge because they have lost one or more valence electron to become more stable.

D) Positively charged ions (cations) have a positve charge because they have gained a proton.

E)Positively charged ions (cations) have a positive charge because they have lost one or more valence electrons to become stable.

F)Roman numerals are used to represent the oxidation number(charge) for transition metals with multiple oxidation states.

G)Negatively charged ions (anions) have a negative charge because they have gained one or more electrons to become stable.

Answer 1

Ionic compound have n cation and an anion.

Cation is formed by losing electron and it has positive charge.

Anion is formed by gaining electron and it has negative charge.

option A is wrong because Ionic compound is not formed by sharing electron

B is correct

C is wrong because anions have negative charge because they have gained electrons

D is wrong because cation have positive charge because they have lost electrons

E is correct

F is correct

G is correct

Answer: B, E, F, G