Potassium bromide (KBr) exhibits predominantly ionic bonding. The K+ and Br- ions have electron structures that are identical to which two inert gases? K+ is identical to argon Br - is identical to xenon K+ is identical to neon Br- is identical to argon K+ is identical to krypton Br- is identical to krypton K+ is identical to argon Br- is identical to krypton