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Cobalt is a metal. Which best describes the cobalt atom and its interactions with other cobalt atoms?

The valence electrons are weakly attracted to the protons and move amongst the atoms.
The valence electrons are strongly attracted to the protons and stay in the same place.
The nuclear protons are strongly attracted to the neutrons and move amongst the atoms.
The nuclear protons are weakly attracted to the neutrons and stay in the same place.

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osprey2015
The valence electrons are weakly attracted to the protons and move amongst the atoms.
And are sometimes referred to as conduction electrons, 'cos they are part of the mechanism a to how metallic conductors conduct electritcity and heat.

Answer: Option (a) is the correct answer.

Explanation:

The nucleus of an atom consists of protons and neutrons. Whereas electrons revolve around the nucleus.

Cobalt is a transition metal and its atomic number is 27. As the nucleus is shielded by a number of electrons, therefore, the valence electrons are weakly attracted to the protons and move amongst the atoms.

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