Write the complete
electron configuration (no
shortcut) of Hafnium.
Write the complete electron configuration (no shortcut) of Hafnium.
Draw the orbital diagram
for titanium.
Draw the orbital diagram for titanium.
Dubnium undergoes alpha
decay to produce a stable
isotope.
Dubnium undergoes alpha decay to produce a stable isotope.
Cadium-110 is produced by
the positron emission of a
radioactive isotope.
Cadium-110 is produced by the positron emission of a radioactive isotope.
The half-life of Nd-60 is 35
minutes. What percentage
of a sample will remain
after 140 minutes?
The half-life of Nd-60 is 35 minutes. What percentage of a sample will remain after 140
minutes?
What is the half-life of a
sample if it decays to 1/32nd
of its original amount in 76
days?
What is the half-life of a sample if it decays to 1/32nd of its original amount in 76 days?
Draw the bohr model for
sulfur.
Draw the bohr model for sulfur.
What are the principle and
angular quantum numbers
for the electron with the
highest energy of tin (Sn)?
What are the principle and angular quantum numbers for the electron with the highest energy
of tin (Sn)?
Which has the longer
wavelength: orange or
yellow? _______________
Which color is associated
with higher energy: green
or blue? ___________
1s22s22p63s23p64s23d104p65s24d105p66s24f145d2
262
Db
105
110
In
49


4
2
He +
0
+1
e +
258
Lr
103
110
Cd
48
140/35 = 4 half lives
100%  50%  25%  12.5%  6.25%
1  ½  ¼  1/8  1/16  1/32
76 days/5 half lives = 15.2 days
N=5
l=p
orange
Which color is associated with higher energy: green or blue? blue
Which has the longer wavelength: orange or yellow?