The best answer for this is A because it answers the question 100% correct
This is false, a compound does not have to contain both cations and anions if ions are present.
Physical properties. Neodymium is a soft, malleable metal. Malleable means capable of being hammered into thin sheets. It can be cut and shaped fairly easily. It has a melting point of 1,024°C (1,875°F) and a boiling point of about 3,030°C (5,490°F).
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