The melting points and boiling points of four elements are shown. element
melting
point/°C
boiling
point/°C
3
-7
60
х
-101
-34
Y
114
184
z
39
688
slid
In which elements do the particles vibrate about fixed positions at 0°C?
А
Wand X
B
W and Z
с
X and Y
D
Y and Z

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each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i