Unit 4 Vocab

Question 1

the arrangement of electrons in an atom (normal electron config. for ground state)

Answer 1

electron configuration

Question 2

an atom or group of atoms that have lost or gained one or more electrons

Answer 2

ion

Question 3

an ion with a positive charge

Answer 3

cation

Question 4

an ion with a negative charge

Answer 4

anion

Question 5

a single atom ion

Answer 5

monatomic ion

Question 6

a group of ions bonded together that act as an ion

Answer 6

polyatomic ion

Question 7

a group of atoms that are held together by chemical forces; the smallest unit of matter that can exist by itself and retain all of a substance’s chemical properties

Answer 7

molecule

Question 8

atoms are usually chemically satisfied with 8 electrons in the valence shell

Answer 8

octet rule

Question 9

the outer energy level of an atom

Answer 9

valence shell

Question 10

an e- found in the valence shell

Answer 10

valence electron

Question 11

an electron occupies the lowest energy orbital that can receive it

Answer 11

Aufbau principle

Question 12

According to this principle, no two electrons in the same atom can have the same set of four quantum numbers.

Answer 12

Pauli excision principle

Question 13

Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron, and all electrons in singly occupied orbitals must have the same spin state

Answer 13

Hund’s rule

Question 14

Group 18 elements (helium, neon, argon, krypton, xenon, and radon) are called this

Answer 14

Noble gases