Flashcards
Sem título
Flashcards do conjunto (5)
- 1Atomic NumberThe number of protons in the nucleus of an atom. This number is unique for each element.
- 2Mass Nu.mberThe number of protons plus neutrons in the nucleus of an atom. That is, the particles that contribute to the mass of the atom.
- 3Chemical SymbolMass number
atomic number - 4Number of NeutronsMass number - Atomic number
(Protons + Neutrons) -
( Protons) - 5ChargeAn atom will be neutral if the number of protons and the number of electrons it has are equal. However, an atom will have a positive charge when it loses electrons ( because there will be more positive protons than negative electrons) and a negative charge when it gain electrons ( because there will be more negative than positive protons).
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- FlashCards sobre Sem título, criado por monay em 17-11-2014.
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- monay
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