PT mini data lab
https://ptable.com/#Properties/Series
Group 13
Group 14
Group 15
Group 16
Group 17
Si
S
Ga
Element A
As
Element B
Br
Sn
Te
Element Symbol
Density g/mL
Melting Point (Kelvin)
Atomic Radius (Size
in pm)
Si (silicon)
2.4
1680
111
As (arsenic)
5.72
1087
114
Sn (tin)
7.3
505
145
Ga (gallium)
5.89
303
136
S (sulfur)
2.03
392
88
Br (bromine)
3.1
266
94
Te (tellurium)
6.24
723
123
Questions:
1) What element is element A-
Estimated density-
Estimated melting point-
Estimated atomic radius-
2) What element is element B-
Estimated density-
Estimated melting point-
Estimated atomic radius-
3) Look up the actual density, melting point, and atomic radius for element A and B and list
them below
Element A
Density-
Melting point (K)-
Atomic radius-
Element B
Density-
Melting point (K)-
Atomic radius-
4) Were your predicted values close or far away from the actual values for each property (Be
specific). If they were close why is the periodic table’s construction significant?
Cl
l
Al
In
P
Sb
5.0 g/mL
1,710
205
190
428
4.75 g/mL
5.323
938.25
125
4.819
221
103
They were a little bit close, the periodic tables construction significant because they are in families and it was up and down.