'Electron affinity trends' presentation slideshows

Periodic Properties of the Elements

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1.7 TRENDS IN THE PERIODIC TABLE

1.7 TRENDS IN THE PERIODIC TABLE. Important Definitions. Trend : predictable change in a particular direction Electron Shielding : inner electrons shield outer electrons from the full attractive force of the nucleus Effective Nuclear Charge (ENC) : charge felt by the valence

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Periodicity-trends of the elements on the periodic table

Periodicity-trends of the elements on the periodic table. Mr. Guerrero LFHS. The 2 reasons for most trends:. 1) Effective Nuclear Charge( Zeff )- the ability(pull) of the nucleus to attract its valence electrons. This increases with increasing numbers of protons in the nucleus.

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