Unit 6 - Periodic Trends (Definitions) Flashcards Preview

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Flashcards in Unit 6 - Periodic Trends (Definitions) Deck (12):
1

one-half the distance between the nuclei of identical atoms that are bonded together / half the distance of an atom

atomic radius

2

an atom that gains or loses electrons / an atom or group of bonded atoms that have a positive or negative charge

ion

3

any process that results in the formation of an ion

ionization

4

energy required to remove one electron from a neutral atom of an element

first ionization energy (IE1)

5

energy required to remove two electrons from a neutral atom of an element

second ionization energy (IE2)

6

the energy change that occurs when an electron is acquired by a neutral atom is called this

electron affinity

7

positve ion

cation

8

negative ion

anion

9

measures the relative size of an ion

ionic radius

10

electrons in the outermost energy level of an atom and are available to be lost, gained, or shared in the formation of chemical compounds

valence electrons

11

the measure of the ability of an atom in a chemical compound to attract electrons from another atom in a compound

electronegativity

12

electrons located in between the positively charged neutron and valence electrons do this

electron shielding