25Periodic Table TrendsMedium1 mark
The noble gases are in Group VIII of the Periodic Table.
Some properties of the first four noble gases are shown.
| noble gas | boiling point / C | density in g / dm |
|---|---|---|
| helium | 0.179 | |
| neon | 0.900 | |
| argon | 1.782 | |
| krypton | 3.708 |
Which row identifies the trends in boiling point and in density as Group VIII is descended?
| boiling point / C | density in g / dm | |
|---|---|---|
| A | decreasing | increasing |
| B | increasing | increasing |
| C | decreasing | decreasing |
| D | increasing | decreasing |