Without
the
118
chemical
elements
,
absolutely
nothing
would
exist
.
Of
course
,
most
of
us
see
the
periodic
table
as
an
academic
headache
,
something
to
ahead
of
our
final
chemistry
exams
.
But
as
we
mark
152
years
since
this
remarkable
creation
,
let's
take
a
moment
to
understand
the
story
behind
this
of
modern
science
.
To
trace
the
modern
periodic
table
to
its
,
we
have
to
go
back
to
the
1860s
.
This
was
the
middle
of
a
period
of
rapid
scientific
discovery
,
with
50
elements
during
that
century
alone
.
Several
chemists
attempted
to
create
a
system
for
organizing
the
elements
so
that
they
could
be
studied
and
better
understood
.
However
,
it
was
Dmitri
Mendeleev
,
a
university
professor
in
St
.
Petersburg
,
Russia
,
who
succeeded
in
the
end
.
Mendeleev
was
preparing
a
textbook
on
the
chemical
behavior
of
different
elements
when
he
noticed
a
pattern
.
Ordering
the
elements
according
to
this
pattern
,
he
unintentionally
managed
to
them
according
to
their
atomic
number
,
which
is
the
number
of
protons
that
an
individual
element
has
.
Mendeleev's
model
also
grouped
elements
with
similar
,
such
as
helium
and
neon
,
in
the
same
column
.
This
newly
formulated
table
more
than
just
helping
to
standardize
the
way
scientists
ordered
and
studied
the
elements
.
Mendeleev's
table
revealed
in
the
pattern
,
allowing
scientists
to
predict
and
search
for
undiscovered
elements
.
The
soft
silver
metal
gallium
was
discovered
in
1875
,
and
the
number
of
elements
in
the
table
has
since
grown
from
the
original
63
to
the
118
we
know
today
.
Recently
,
scientists
have
found
a
new
use
for
Mendeleev's
table
.
In
2019
,
the
European
Chemical
Society
put
forward
a
new
of
the
table
that
presents
the
90
elements
that
occur
in
nature
according
to
their
available
reserves
.
out
across
an
oblong
manipulation
of
the
original
table
,
each
element's
cell
is
sized
according
to
its
in
nature
.
Elements
with
a
plentiful
supply
,
such
as
hydrogen
and
oxygen
,
appear
in
swollen
green
boxes
.
Smaller
cells
in
orange
and
red
,
meanwhile
,
vulnerability
,
red
being
used
for
elements
whose
readily
accessible
natural
reserves
may
become
depleted
within
the
next
100
years
.
While
many
endangered
elements
may
not
disappear
entirely
,
global
shortages
could
have
consequences
.
Helium
,
which
is
shaded
red
in
the
table
,
is
for
the
operation
of
key
medical
equipment
.
Without
gallium
,
we
may
also
no
longer
be
able
to
harness
solar
energy
.
Another
feature
of
the
table
shows
how
exploitation
of
key
materials
will
hit
us
all
closer
to
home
.
Thirty
-
one
of
the
table's
cells
carry
a
smartphone
symbol
indicating
that
these
elements
are
currently
used
in
our
handheld
devices
.
At
current
rates
of
,
the
devices
that
we
have
come
to
rely
on
to
communicate
,
socialize
,
and
network
have
become
their
own
endangered
species
.
That
being
said
,
contemporary
study
of
the
elements
is
not
entirely
centered
around
questions
of
.
A
new
periodic
table
under
development
by
scientists
at
Moscow's
Skolkovo
Institute
of
Science
and
Technology
suggests
that
some
elements
are
still
yet
to
be
discovered
.
Nevertheless
,
we
must
remember
that
these
building
blocks
are
not
infinite
.
We
must
therefore
work
to
understand
how
humanity
consumes
these
elements
and
how
we
can
them
.
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