Download Chapter 5 Review - Net Start Class

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Dubnium wikipedia, lookup

Oganesson wikipedia, lookup

Periodic table wikipedia, lookup

Tennessine wikipedia, lookup

Chemical element wikipedia, lookup

Unbinilium wikipedia, lookup

Ununennium wikipedia, lookup

History of molecular theory wikipedia, lookup

Transcript
Chapter 5 Review
Atomic Theory/Scientists
Who
was the first person to
theorize the existence of the
atom in 400 BC?
Democritus
Atomic Theory/Scientists
Who
was given credit as the
first person that proved the
nature of atoms?
John Dalton
Atomic Theory/Scientists
According
to Dalton’s
Atomic Theory, all elements
are composed of tiny
indivisible particles
called_______?
atoms
Atomic Theory/Scientists
Dalton’s
Atomic Theory
stated that atoms of the
same _______ are identical.
element
Atomic Theory/Scientists
Dalton’s
Atomic Theory was
for the most part correct,
except for the fact that
atoms can be ________.
divided
Atomic Theory/Scientists
Who
is credited with
discovering the electron?
JJ Thomson
Atomic Theory/Scientists
Experiments
with cathode
ray tubes led to the
discovery of the ________.
electron
Atomic Theory/Scientists
The
rays produced in the
early cathode ray tube
experiments were attracted
to a _________ charge.
positive
Atomic Theory/Scientists
JJ
Thomson discovered that
electrons have a very_____
mass.
small
Atomic Theory/Scientists
Who
discovered the proton?
E. Goldstein
Atomic Theory/Scientists
Who
discovered the
neutron?
Chadwick
Atomic Theory/Scientists
What
happened to most of
the particles in Rutherford’s
gold foil experiment?
most passed through the
foil
Atomic Theory/Scientists
In
Rutherford’s experiment, a
few of the positive particles
bounced back, so what did he
concluded they bounced off
of?
a dense positive region called
the nucleus
Atomic Theory/Scientists
Who
discovered the
nucleus?
Rutherford
Atomic Theory/Scientists
Which
experiment did we
re-create in lab using
wooden boards and
marbles?
Rutherford’s gold foil
experiment
Subatomic Particles
Which
subatomic particle
has a negative charge?
electron
Subatomic Particles
Which
subatomic particle
has a positive charge?
proton
Subatomic Particles
Which
subatomic particle is
neutral?
neutron
Atoms
Atoms
are electrically
neutral because the number
of _________ equals the
number of ___________.
protons equal electrons
Atoms
What
is the charge of the
nucleus of an atom?
positive (because the
protons are positive)
Atoms
What
determines the
identity of an element?
the number of protons
Atoms
Isotopes
of the same
element differ in what two
ways?
mass number and number
of neutrons
Atoms
What
3 things do isotopes
of the same element have in
common?
atomic number, number of
protons and electrons
Atoms
How
do you find the
number of protons for an
atom?
same as the atomic number
Atoms
How
do you find the
number of neutrons for an
atom?
mass # - atomic #
Atoms
How
do you find the
number of electrons for an
atom?
same as the atomic number
Atoms
All
atoms of the same
element have the same
________ ________.
atomic number
Atoms
What
element is the
standard for determining
atomic mass units?
Carbon - 12
Atoms
The
average atomic mass
depends on the masses of
the isotopes and the relative
__________ of each
isotope.
abundance
Atoms
What
unit is used to
measure relative atomic
mass?
amu’s
Atoms
The
atomic mass listed on
the periodic table is a
_______ atomic mass.
average
Atoms
Sodium
has atomic number
11. If a sodium atom has a
mass of 23, how many
protons does it have?
11
(same as atomic number)
Atoms
Sodium
has atomic number
11. If a sodium atom has a
mass of 23, how many
neutrons does it have?
12
(subtract mass#-atomic#)
Atoms
Sodium
has atomic number
11. If a sodium atom has a
mass of 23, how many
electrons does it have?
11
same as atomic number
Atoms
A
carbon atom has 6
protons, 6 electrons and 8
neutrons. What is it’s mass
number?
14 (protons + neutrons)
Atoms
A
carbon atom has 6
protons, 6 electrons and 8
neutrons. What is it’s
atomic number?
6 (same as protons)
Atoms
Hg-200
has an atomic
number of 80. How many
neutrons does it have?
120
Atoms
Hg-200
has an atomic
number of 80. How many
protons does it have?
80
Atoms
Hg-200
has an atomic
number of 80. How many
electrons does it have?
80
Study!!!
Visit
my website tonight to
see this power point!