Can 10k Gold be magnetic?

I have a "10k gold" chain that is attracted to a magnet. When I hold a magnet above the piece it is attracted but the attraction isn't strong enough to lift the piece. Could the alloy metals that are mixed in the piece possibly causing the attraction. I know 10K gold is only 41.7% gold. But I've been told that if it is attracted by a magnet it is not real 10k. Please only give me an answer about 10k gold. I don't care about 14k, 18k , 22k or 24k. Only answer if you know about 10K gold. Thank you.