Key Words

Deduce the numbers of protons, neutrons and electrons in:

(i) An atom given its atomic and mass number & (ii) An ion given its atomic number, mass number and ionic charge.

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Isotope

Isotopes are atoms of the same element with different numbers of neutrons but the same number of protons and electrons and have different masses

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Atomic (proton) Number

Atomic number is the number of protons in the nucleus of an atom

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Mass (nucleon) Number

Mass number is the number of particles (protons and neutrons) in the nucleus

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Ion

An ion is a positively or negatively charged atom or (covalently bonded) group of atoms (a molecular ion.)

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Other cards in this set

Isotopes are atoms of the same element with different numbers of neutrons but the same number of protons and electrons and have different masses

Isotope

Atomic number is the number of protons in the nucleus of an atom

Mass number is the number of particles (protons and neutrons) in the nucleus

An ion is a positively or negatively charged atom or (covalently bonded) group of atoms (a molecular ion.)

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