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Atoms and how atoms combine
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Layla Kivlin
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Cards (30)
what is an
element
?
substance
which are made from only
one
type of atom
what are
atoms
made
up
of
?
protons
,
neutrons
and
electrons
where are
electrons
located?
outside
the
nucleus
where are
protons
and
neutrons
located?
inside the
nucleus
what is the charge of a
proton?
positive
what is the charge of a
neutron?
neutral
what is the charge of an
electron?
negative
why are all
atoms
neutral
?
they contain an equal number of
positive
protons and
negative
electrons
what is an atomic number?
number of
protons
in an
atom
what is a
mass
number?
number of
protons
and
neutrons
how do you figure out the number
of
neutrons?
mass
number
-
atomic
number
where is the
atomic
number
located in a symbol?
bottom
where is the
mass
number
located in a symbol?
top
what are
energy
levels?
places
where
electrons
are
found
why do elements in the
same
groups
have
similar
chemical
properties?
they have the
same
number
of
outer electrons
what is an
isotope?
atoms
which have the
same
atomic
number
but
different
mass
numbers
what is
relative
atomic
mass
?
the
average mass
of an atom of an
element
what is a
compound
?
a
substance
formed when
two
or more different types of atom
chemically
join
together
what is a
molecule
?
a group of
non-metal
atoms which are
chemically
joined
together
what does
diatomic
mean?
joined together
what does
monatomic
mean?
a
single
atom
what is a
stable
electron
arrangement
?
the
full outer energy levels
which make the
noble gases unreactive
or
stable
what is a
covalent bond
?
a
chemical bond
formed when two or atoms share
electrons
when is a
double
covalent
bond
formed?
when
two
pairs of
electrons
are
shared
between two atoms
when is a
triple
covalent
bond
formed?
when
three
pairs
of
electrons
are
shared
between two atoms
how can some
molecular
formulas
be worked out?
by the name
what are the
covalent
network
figures?
diamond
(carbon) and
silicon dioxide
The
nucleus
is the
central
part of an atom, containing
protons
and
neutrons.
Protons
have a
positive
charge (+1) and are located in the
nucleus.
Neutrons
do
not
carry any
electrical
charge.