the atom 1.parts of the atom 2.how to draw an atom
TRANSCRIPT
Parts of the atom
Part Location Charge Mass How to find the number of:
Proton In the nucleus
Positive
(+)
1 AMUSame as the
atomic number
Neutron In the nucleus
Neutral(No charge)
1 AMUAtomic Mass
minus the atomic number
Electron Orbits the nucleus
Negative
(-)
1/1800
AMU
Usually the same as the atomic
number
Parts of the atom
Part Location Charge Mass How to find the number of:
Proton In the nucleus
Positive
(+)
1 AMUSame as the
atomic number
Neutron In the nucleus
Neutral(No charge)
1 AMUAtomic Mass
minus the atomic number
Electron Orbits the nucleus
Negative
(-)
1/1800
AMU
Usually the same as the atomic
number
Rules for Elements’ Symbols
• First letter is always capitalized
Rules for Elements’ Symbols
• First letter is always capitalized
• Second and third letters, if any, are always lower case
Proton Same as the atomic number
NeutronAtomic Mass minus the
atomic number
ElectronUsually the same as the
atomic number
Proton Same as the atomic number
NeutronAtomic Mass minus the
atomic number
ElectronUsually the same as the
atomic number
p+: ? n: ? e-: ?
Proton Same as the atomic number
NeutronAtomic Mass minus the
atomic number
ElectronUsually the same as the
atomic number
p+: 2 n: ? e-: ?
Proton Same as the atomic number
NeutronAtomic Mass minus the
atomic number
ElectronUsually the same as the
atomic number
p+: 2 n: 4 - 2 e-: ?
Proton Same as the atomic number
NeutronAtomic Mass minus the
atomic number
ElectronUsually the same as the
atomic number
p+: 2 n: 2 e-: ?
Proton Same as the atomic number
NeutronAtomic Mass minus the
atomic number
ElectronUsually the same as the
atomic number
p+: 2 n: 2 e-: 2
Drawing the Helium Atomp+: 2 in the nucleus
n: 2 in the nucleus
e-: 2 orbits the nucleus
p+
p+
n
n
e-
e-
Drawing the Helium Atomp+: 2 in the nucleus
n: 2 in the nucleus
e-: 2 orbits the nucleus
p+
p+
n
n
e-
e-
NICE!