Periodic Trends Concept Attainment Quiz - Vocabulary

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Draggable item		Corresponding Item
attraction		The columns on a periodic table that arrange the elements by the number of electrons that are in the outside shell
periods		The rows in a periodic table that classify the elements by the number of atomic shells
electronegativity		The electrons in the outermost energy level of an atom that influence how an element will react with other substances
ionization energy		A force that acts to move objects closer together
repulsion		The force that acts between bodies of like electric charge or magnetic polarity, tending to separate them
valence electrons		The energy required to remove one electron from a neutral atom of an element in the gaseous state
groups		The tendency of an atom or group of atoms to attract electrons

Match the vocabulary word with its definition