The boiling and melting points of alkaline earth metals vary and increase as you move down the group.

Here's a table showing the melting and boiling points of the common alkaline earth metals:

| Metal | Symbol | Melting Point (°C) | Boiling Point (°C) |

|---|---|---|---|

| Beryllium | Be | 1278 | 2471 |

| Magnesium | Mg | 650 | 1090 |

| Calcium | Ca | 842 | 1484 |

| Strontium | Sr | 777 | 1382 |

| Barium | Ba | 725 | 1640 |

| Radium | Ra | 700 | 1140 |

General Trends:

* Melting Point: Increases as you go down the group. This is due to the larger atomic size and increased metallic bonding.

* Boiling Point: Also increases as you go down the group. The stronger metallic bonding makes it harder to break the bonds and vaporize the metal.

Let me know if you want more information about a specific alkaline earth metal!