Atoms, Periodic Table, and Chemical Reactions
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What charge are the particles in the cloud that surround the nucleus of an atom?
Negative
A certain element has 12 neutrons and 11 protons. Assume this element has an overall neutral charge. What is the identity of this element?
Sodium (Na)
A neutral atom with 15 protons has ______ valence electrons.
Five (5)
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