Is this done in order to
preserve the difference of seven from its comrade?
XENON: Six arms of 363 atoms 2178
Central tetrahedra 120
-----
Total 2298
-----
Atomic weight 127.10
Number weight 2298/18 127.66
META-XENON differs from xenon only by the substitution of two _z_'s for _x_
and _y_.
META-XENON: Six arms of 370 atoms 2220
Central tetrahedra 120
-----
Total 2340
-----
Atomic weight -----
Number weight 2340/18 130
KALON (Plate XXI, 3 and 4, and Plate XX, 6 and 7) has a curious cone,
possessing a kind of tail which we have not observed elsewhere; _x_ and _y_
show the same asymmetry as in xenon.
KALON: Six arms of 489 atoms 2934
Central tetrahedra 120
----
Total 3054
----
Atomic weight ----
Number weight 3054/18 169.
Pages:
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148