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Trends in p.table

QuestionAnswer
Atomic radius half the distance between the nuclei of two atoms of the same element held together by a single covalent bond
electronegativity the force of attraction that an atom in a molecule has for the shared pair of electrons in a covalent bond
first ionisation rule the minimum amount of energy required to completely remove the most loosely electron from a gaseous, neutral atom in its ground state.
down a group new energy level, increase in screening
across a period increase in effective nuclear charge, decrease in atomic radius
second ionisation energy the energy required to remove an electron from an ion with one positive charge in the gaseous state
Created by: Miki_Szn
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