Unit 6 - Periodic Trends (Definitions)

Question 1

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

Answer 1

atomic radius

Question 2

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

Answer 2

ion

Question 3

any process that results in the formation of an ion

Answer 3

ionization

Question 4

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

Answer 4

first ionization energy (IE1)

Question 5

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

Answer 5

second ionization energy (IE2)

Question 6

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

Answer 6

electron affinity

Question 7

positve ion

Answer 7

cation

Question 8

negative ion

Answer 8

anion

Question 9

measures the relative size of an ion

Answer 9

ionic radius

Question 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

Answer 10

valence electrons

Question 11

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

Answer 11

electronegativity

Question 12

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

Answer 12

electron shielding