Protons, Neutrons, Electrons
How Do We Find All 3?
And Where Do We Get These Parts Of The
Atoms?
So, How Do We Use All These
Numbers to Make Sense of
What We Have?
Protons: can be identified by
the ATOMIC NUMBER
6
C
12.011
So, How Do We Use All These
Numbers to Make Sense of What
We Have?
Electrons: can be identified by
the ATOMIC NUMBER
6
C
12.011
So, Mr. M…how can we find
the Neutrons then?
Neutrons: can be found when
taking the ATOMIC MASS and
subtracting out the ATOMIC
NUMBER
6
C
12.011
ATOMIC
MASS
ATOMIC
NUMBER
Practice!!!!
12
Mg
24.3
protons
neutrons
electrons
Magnesium
12 Protons
12 Electrons
12
Mg
24.3
Neutrons =
Atomic Mass – Atomic Number
24 – 12 = 12 Neutrons
Practice 2!!!
17
Cl
35.5
protons
electrons
neutrons
Chlorine
17 Protons
17 Electrons
17
Cl
35.5
Neutrons =
Atomic Mass – Atomic Number
36 - 17 = 19 Neutrons
Practice 3!!!
107
Bh
262.1
protons
electrons
neutrons
Bohrium
107 Protons
107 Electrons
107
Bh
262.1
Neutrons =
Atomic Mass – Atomic Number
262 - 107 = 155 Neutrons
Name That Element!!!
??
??
??
HELP ME FIND THIS
ELEMENT!!!
I am a metal with 35
Neutrons...help me find my
name!?!?!?!
protons
Hint: I am missing
from either Group
10, 11, or 12.
neutrons
electrons
Dum, Dum-Dum, Dum,
Dum...
We search the 3
possible groups
and we check
Atomic Masses –
Atomic NUMBERS
to see which one
gives us 35
Neutrons
protons
35
neutrons
electrons
HAHA!!!!
30
Zn
65.38