Concept explainers
Interpretation:
The relation between name Scandium(III) oxide in terms of electrons gained or lost needs to be explained and the correct formula needs to be identified.
Concept introduction:
Ionic bonds are formed when there is complete transfer of electrons from one atom to another. These atoms either lose or gain electrons to become negatively or positively charged ions. The forces of attraction between these ions cause the ionic bond formation. Ionic compounds are formed only when there is a balance between their charges.
Answer to Problem 80A
The element Scandium will lose 3 electrons to form
Explanation of Solution
The element Scandium belongs to Group 3 and is the first element in this group.
Its
It has 3 valence electrons in its outermost shells and can donate these 3 electrons and become
The element oxygen belongs to group 16 and its atomic number is 8. The electronic configuration is
Therefore, combining
The element Scandium will lose 3 electrons to form
Chapter 7 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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