Bellwork
Tuesday – October
27,2015
Today:
Atoms Worksheet
A stable carbon atom has the
following parts:
– 6 protons
– 6 neutrons
– 6 electrons
Describe the location of each of
these parts in a carbon atom.
Tuesday – October
27,2015
Today:
Atoms Worksheet
Bellwork
Protons and neutrons are
found in the nucleus of the
atom, at the very center.
Electrons are found in an
electron cloud that surrounds
the nucleus.
How to Read Element Atomic Info
• Atomic Number
– The number of protons
in one atom of the
element
• Symbol
– Shorthand for element
name
• Atomic Mass
– The mass of one atom of
the element
Number of Protons & Neutrons
• Atomic
Number =
number of
protons
• Atomic Mass
Number equal to the #
of protons plus
neutrons.
Number of Electrons
• In a neutral
atom, the # of
protons = the
# of electrons
Fill in the Blanks
7
N
Nitrogen
14.01
•
•
•
•
•
Atomic #:
Atomic Mass:
# of Protons:
# of Neutrons:
# of Electrons:
Fill in the Blanks
7
N
Nitrogen
14.01
•
•
•
•
•
Atomic #:
7
Atomic Mass:
# of Protons:
# of Neutrons:
# of Electrons:
Fill in the Blanks
7
N
Nitrogen
14.01
•
•
•
•
•
Atomic #:
7
Atomic Mass: 14.01
# of Protons:
# of Neutrons:
# of Electrons:
Fill in the Blanks
7
N
Nitrogen
14.01
•
•
•
•
•
Atomic #:
7
Atomic Mass: 14.01
# of Protons: 7
# of Neutrons:
# of Electrons:
Fill in the Blanks
7
N
Nitrogen
14.01
•
•
•
•
•
Atomic #:
7
Atomic Mass: 14.01
# of Protons: 7
# of Neutrons: 7
# of Electrons:
Fill in the Blanks
7
N
Nitrogen
14.01
•
•
•
•
•
Atomic #:
7
Atomic Mass: 14.01
# of Protons: 7
# of Neutrons: 7
# of Electrons: 7
Nitrogen Atom
7
N
Nitrogen
14.01
•
•
•
•
•
Atomic #:
7
Atomic Mass: 14.01
# of Protons: 7
# of Neutrons: 7
# of Electrons: 7
Part C: Electron Configuration
• Valence Electrons: Electrons on the outermost
shell or energy level.
• Octet Rule:
– 1st Shell: 2 e– 2nd Shell: 8 e– 3rd Shell: 8 e-
• Bohr Model: Diagrams all energy levels
• Lewis Structure: Diagrams only valence
electrons
Complete the Atoms Basics Worksheet