The nucleus of an atom of cobalt-58 contains:
1. 27 protons and 31 neutrons
2. 27 protons and 32 neutrons
3. 59 protons and 60 neutrons
4.60 protons and 60 neutrons

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

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