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Bohr's Model of the Atom
Bohr's Model of the Atom
Bohr's Model of the Atom
Niels Bohr (1913):
Bohr's Model of the Atom
Niels Bohr (1913):-studied the light produced when atoms
were excited by heat or electricity
Bohr's Model of the Atom
Niels Bohr (1913):-studied the light produced when atoms
were excited by heat or electricity
Bohr's Model of the Atom
Niels Bohr (1913):-studied the light produced when atoms
were excited by heat or electricity
Rutherford's model couldn't explain why unique colours were obtained by atoms ofdifferent elements
Bohr's Model of the Atom
Niels Bohr (1913):-studied the light produced when atoms
were excited by heat or electricity
Rutherford's model couldn't explain why unique colours were obtained by atoms ofdifferent elements
Bohr proposed that electrons are in orbits & when excited jump to a higher orbit. When they fall back to the original they give off light
Bohr's Model of the AtomBohr's model:
-electrons orbit the nucleus like planets orbit the sun
Bohr's Model of the AtomBohr's model:
-electrons orbit the nucleus like planets orbit the sun
-each orbit can hold a specific maximum number of electrons
Bohr's Model of the AtomBohr's model:
-electrons orbit the nucleus like planets orbit the sun
-each orbit can hold a specific maximum number of electrons
orbit maximum # electrons
1 2
2 8
3 8
4 18
Bohr's Model of the Atom
Bohr's model:-electrons orbit the nucleus like planets
orbit the sun-each orbit can hold a specific maximum number of electrons-electrons fill orbits closest to the nucleus first.
Bohr's Model of the Atom
e.g. fluorine:#P =
#e- =
#N =
Bohr's Model of the Atom
e.g. fluorine:#P = atomic #
= 9#e- =
#N =
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = # P = 9
#N =
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = atomic mass - # P = 10
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = 10draw the nucleus with protons & neutrons
9P10N
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = 10how many electrons canfit in the first orbit?
9P10N
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = 10how many electrons canfit in the first orbit?
2
9P10N
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = 10
how many electrons are left?
9P10N
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = 10
how many electrons are left? 7
9P10N
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = 10
how many electrons are left? 7how many electrons fit in the
second orbit?
9P10N
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = 10
how many electrons are left? 7how many electrons fit in the
second orbit? 8
9P10N
Bohr's Model of the Atom
e.g. fluorine:#P = 9
#e- = 9
#N = 10
9P10N
Bohr's Model of the Atom
try these:
hydrogen
boron
magnesium
Bohr's Model of the Atom
try these:
hydrogen
1P0N
Bohr's Model of the Atom
try these:
boron5P6N
Bohr's Model of the Atom
try these:
magnesium
12P12N
