Section 1
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neutron
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Cards (104)
Section 1
(50 cards)
neutron
nuetral subatomic particle
nonmetals
Not a metal. Accepts electrons from a metal.
metalloids
has both metal and nonmetal properties
noble gases
Group (column) 8 elements
chlorine
Cl
chemical formula
represents how many and what kinds of elements are in the compound
carbon
C
cadmium
Cd
diatomic molecles
a molecule made of 2 atoms (like 2 oxygens, or 2 flourines)
nuclear atom
The atom has a positively charged nucleus with an orbiting negative cloud of electrons
law of constant composition
atoms can not be made nor destroyed
argon
Ar
iodine
I
magnesium
Mg
nucleus
the center of the atom. Contains protons and nuetrons
groups
vertical columns of the periodic table
periodic table
a chart of all the different kinds of elements
element symbols
Letters that represent the element
iron
Fe
electron
negative charged subatomic particle
transition metals
the short columns of the periodic table
fluorine
F
calcium
Ca
isotopes
Atoms of the same element having different number of neutrons
mass number
the number of protons + the number of neutrons
proton
positive charged subatomic particle
hydrogen
H
cobalt
Co
gold
Au
arsenic
As
compound
made of 2 or more elements
boron
B
helium
He
bismuth
Bi
lead
Pb
lithium
Li
manganese
Mn
metals
an element that gives up electrons easily. They are lustrous, malleable, and a good conductor of heat and electricity.
aluminum
Al
copper
Cu
antimony
Sb
alkaline earth metals
Group (column) 2 metals
atomic number
represents the number of protons in the nucleus
mercury
Hg
atom
basic unit that elements are made of
halogens
Group (column) 7 elements
alkali metals
Group (column) 1 metals
chromium
Cr
barium
Ba
Dalton's atomic theory
Elements are made of atoms
Section 2
(50 cards)
radium
Ra
Radon
Rn
uranium
U
ratio
- how much of that atom is in 1 molecule of that compound
zinc
Zn
Ernest Rutherford
Gold foil experiment Accidentally discovered the atom's nucleus, protons and neutron
JJ Thompson
Discovered electrons
what are the positively charged particles found in the nuclei of atoms called
...
silver
Ag
True or false Most atoms also contain neutrons which are slightly heavier than protons but carry no charge
...
Dmitri Mendeleev
Russian scientist 1869 arranged the table in the columns and rows they are in today He actually arranged the elements in order of mass number instead of atomic number
What does a catalytic converter do?
Converts CO in car exhaust to CO2
John Dalton
English scientist & teacher Dalton's atomic theory
the chemical formula for glucose?
C6 H12 O6
phosphorus
P
true or false The proton and the electron have similar masses but opposite charges
...
examples of symbols that don't relate to the spelling of their elements
antimony - Sb copper - Cu gold - Au iron - Fe Lead -Pb
titanium
Ti
What is the chemical formula for water?
H2O
how do we write chemical formulas
Represent ea. type of element present w/ its chemical symbol Write the amount of that type of atom with a small # to the bottom right of the symbol When only 1 of a particular atom is present, we do not put a 1 subscript
Which part of the atom determines its chemical properties?
electron
nickel
Ni
oxygen
O
Where do we find atomic mass on the periodic table?
bottom # under word
although the nucleus of an atom is very importan, it is the ________ of the atom that determine its chemical properties
...
silicon
Si
what uncharged particles are found in the nuclei of most atoms
neutron
How do we find how many neutrons an atom has if we know the atomic mass?
mass - protons
beryllium
Be
elements in the human body
O, C, H, N, Ca, P, K, S, Na, Mg
strontium
Sr
Krypton
Kr
tungsten
W
Draw and label an atom using: electron orbital, nucleus, proton, electron, neutron
...
are all atoms of the same element identical? If not, how can they differ
...
What is the problem with N2O
it is a green house gas
true or false atoms are made up of tiny particles called molecules
false
All APES are the same
Atomic number Proton Electrons
sodium
Na
true or false: Most materials occur in nature as pure substances
false
platinum
Pt
chemical formula for carbon monoxide?
CO
chemical formula for salt?
NaCl
neon
Ne
potassium
K
atomic model
An atomic model is a structure or drawing that shows the parts of an atom. atom
tin
Sn
nitrogen
N
sulfur
S
What are the most abundant elements found in living creatures? Are these elements the most abundant elements found in the nonliving world?
oxygen, hydrogen, and carbon Oxygen is the most abundant in the nonliving world, which is the same, but silicon and aluminum are different
Section 3
(4 cards)