Lecture One.

Question 1

Second most electronegative element

Answer 1

OXYGEN

Question 2

Diatomic Molecules

Answer 2

hydrogen , oxygen, nitrogen and HALOGENS

Question 3

Atomic Radius

Answer 3

Increase Down and to the Left

distance from the center of the nucleus to the outermost electron

Question 4

Ionization Energy

Answer 4

Increase Up and to the Right

The energy needed to detach and electron from an atom

Question 5

Electronegativity

Answer 5

Increase UP and to the RIGHT

Tendency of an atom to attract electrons shared in a covalent bond

Question 6

Electron Affinity

Answer 6

Increase UP and Right

willingness of an atom to accept an additional electron

Question 7

Isoelectronic Ions

same number of electrons but different elemental identities

Answer 7

O2- , F- , Ne , Na+ , Mg2+

ranked from largest to smallest in size.

Question 8

Heisenberg Uncertainty Principle

Answer 8

uncertainty in the position of a particle and its momentum. the more we know about one the less we know about the other, Vice Versa.

Question 9

Chromium (Cr) E-Configuration

Answer 9

[Ar] 4s1 3d5

Question 10

Copper (Cu) E-Configuration

Answer 10

[Ar] 4s1 3d10

Question 11

Paramagnetic Elements

Answer 11

have unpaired electrons

Question 12

amount of energy in a photon

Answer 12

(Delta)E = (6.6x10-34)(frequency)

Question 13

Work Function

Answer 13

The minimum amount of energy required to free a electron on metal

Question 14

Electrons Kinetic Energy

Answer 14

K.E= hf(energy in)- Work function ( energy out)

Question 15

Bond Length

Answer 15

the distance between the nuclei of two atoms in a bond when they are at their lowest energy levels.

Question 16

which atoms hydrogen bond with with hydrogen?

Answer 16

Oxygen, Nitrogen and Flourine

Question 17

what are the weakest intermolecular forces ?

Answer 17

London Dispersion Forces

Question 18

SI Units: Mass, Length, Time , Temperature , Amount of substance.

Answer 18

Kilograms, Meters, Seconds, Kelvin, Moles

Question 19

Mega-

Answer 19

10^6

Question 20

Kilo-

Answer 20

10^3

Question 21

Deci-

Answer 21

10^-1

Question 22

Centi-

Answer 22

10^-2

Question 23

Milli-

Answer 23

10^-3

Question 24

Micro-

Answer 24

10^-6

Question 25

Nano-

Answer 25

10^-9

Question 26

Pico-

Answer 26

10^-12

Question 27

Femto

Answer 27

10^-15

Question 28

Avagadro’s number

Answer 28

6.022 x 10^23 = 1 gram

Question 29

elementary reaction

Answer 29

a reaction that occurs in a single step

Question 30

reaction orders

Answer 30

show how changes in the reactant concentrations influence the reaction rate

Question 31

The order of the overall reaction is..

Answer 31

the sum of the exponents in the rate law.

Question 32

Radioactive Decay

Answer 32

atoms that spontaneously break apart

Question 33

Half-Life and its 4 variables

Answer 33

length of time necessary for one half of a given amount of substance to decay.
Variables: Initial amount of substance, the final amount of substance, the length of half-lives, the number of half lives

Question 34

alpha-decay

Answer 34

move left on the periodic table 2 spaces and subtract 4 from the mass #

Question 35

beta-decay

Answer 35

move right one time on the periodic table.