Atom Structure
Information found on PTable
Calculate #p, n, and e
Calculate atomic mass, isotopes, and Bohr models
100
What are the three subatomic particles called?
protons, neutrons, and electrons
100
What does the # on top of each box tell you?
Atomic # = to the # of p+
100
Calculate the number of p+, n0, and e- in the following:
C
p - 6
n - 6
e - 6
100
Calculate the # of p, n, and e in the following
41Ca+1
p - 20
n - 21
e - 19
200
What are the charges of the subatomic particles?
p+
n0
e-
200
What is the atomic mass # an average of?
The average mass of all isotopes of an element (mass from p+, n0, and e-
200
Calculate the number of p, n, and e in the following:
Na
p - 11
n - 12
e - 11
200
Calculate the # of p, n, and e in the following:
35S-2
p - 16
n - 19
e - 18
300
What is the force between the nucleus and the electron cloud called?
Electromagnetic force: attractive
300
How do you determine the number of neutrons in an atom?
You take the mass - p+ (atomic #) = n0
300
Which element has 5 rings and 6 valence electrons?
Te
300
Draw the Bohr model for the following:
Al
400
What is the force that holds the nucleus together called?
Strong nuclear force
400
What do the groups tell you?
The number of valence electrons; electrons in the outermost shell
400
Calculate the # of p, n, and e in the following:
Ca+2
p - 20
n - 20
e - 18
400
Draw the Bohr model for the following:
F
500
Where are quarks found and what do they do?
Quarks are found in the nucleus in both the protons and neutrons. They create the strong nuclear force that allows the nucleus to stay condensed
500
What information can you get from the periods?
The # of shells (rings) an atom has
500
Calculate the # of p, n, and e in the following:
N-3
p - 7
n - 7
e - 10
500
Calculate the average atomic mass of Titanium that has five isotopes: 46Ti (8.0%), 47Ti (7.8%), 48Ti (73.4%), 49Ti (5.5%), 50Ti (5.3%)
47.92 amu