CH-1193
Ionic bonding
Chemistry · Secondary 4 · Medium · Ionic bonding
An element X has electronic configuration 2,8,2 and element Y has electronic configuration 2,7.
They react to form a compound.
What type of compound is formed and how do the atoms change?
They react to form a compound.
What type of compound is formed and how do the atoms change?
- Covalent; each X atom shares 2 electrons with one Y atom.
- Covalent; each X atom gains 2 electrons from two Y atoms.
- Ionic; each X atom loses 2 electrons and each Y atom gains 1 electron.
- Ionic; each X atom gains 2 electrons and each Y atom loses 1 electron.
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