What does the Oxidizing Agent do in a redox reaction?
(aka the oxidant)
gains an electron. Becomes reduced
What is the molecular weight?
the sum of the mass of each element
Cannot be observed without changing the identity & composition of a
substance
chemical property
Can be observed without changing the identity & composition of a substance
Physical property (color, density, melting point) all intensive. do not depend
on amount of substance e
measure force of gravity of an object
weight
measure of how much matter an object contains
mass
,α-particles
β-particles
γ-rays
2+ elementary charge
1- elementary charge
uncharged
Who discovered the nucleus by observing the scattering of α-particles off of a
thin gold foil & discovered the proton by bombarding N2 with α-particles.
Rutherford
Thompson discovered the Plum Pudding Model - what was that? Who proved
him wrong?
stated that nucleus was a scattered positive sphere with electrons embedded
in it, was proved wrong by Rutherford who did the gold foil experiment
**
Who discovered the proton?
Rutherford by bombarding N2 with alpha particles
Describe the atom. What makes up the nucleus and where do electrons
reside
,Protons and neutrons form the small, dense nucleus; electrons are found in a
diffuse cloud around the nucleus; most of the volume of an atom is empty
space.
How did Thompson discover the Electron?
by cathode
What are rows
What are columns
periods are rows
groups of columns
poor conductors, brittle
nonmetal
Bond formed from: metal+nonmetals
ionic bond
bond formed from: two nonmetals
molecular compound
, How do you calculate Molarity
mol/L
What does a neutralization reaction occur between? What does it result in?
strong acid + base
H2O
Which type of compound has a higher melting point?
ionic compounds have higher melting points that molecular compounds
Energy is required to
break a bond
Energy is released when
a bond forms
Define Bond Polarity
Electrons will spend most of their time around the most electronegative atom
δ+ goes over the ____________ and δ- over
the ___________ atom
(aka the oxidant)
gains an electron. Becomes reduced
What is the molecular weight?
the sum of the mass of each element
Cannot be observed without changing the identity & composition of a
substance
chemical property
Can be observed without changing the identity & composition of a substance
Physical property (color, density, melting point) all intensive. do not depend
on amount of substance e
measure force of gravity of an object
weight
measure of how much matter an object contains
mass
,α-particles
β-particles
γ-rays
2+ elementary charge
1- elementary charge
uncharged
Who discovered the nucleus by observing the scattering of α-particles off of a
thin gold foil & discovered the proton by bombarding N2 with α-particles.
Rutherford
Thompson discovered the Plum Pudding Model - what was that? Who proved
him wrong?
stated that nucleus was a scattered positive sphere with electrons embedded
in it, was proved wrong by Rutherford who did the gold foil experiment
**
Who discovered the proton?
Rutherford by bombarding N2 with alpha particles
Describe the atom. What makes up the nucleus and where do electrons
reside
,Protons and neutrons form the small, dense nucleus; electrons are found in a
diffuse cloud around the nucleus; most of the volume of an atom is empty
space.
How did Thompson discover the Electron?
by cathode
What are rows
What are columns
periods are rows
groups of columns
poor conductors, brittle
nonmetal
Bond formed from: metal+nonmetals
ionic bond
bond formed from: two nonmetals
molecular compound
, How do you calculate Molarity
mol/L
What does a neutralization reaction occur between? What does it result in?
strong acid + base
H2O
Which type of compound has a higher melting point?
ionic compounds have higher melting points that molecular compounds
Energy is required to
break a bond
Energy is released when
a bond forms
Define Bond Polarity
Electrons will spend most of their time around the most electronegative atom
δ+ goes over the ____________ and δ- over
the ___________ atom
