What is the trend in boiling points down Group 1?

Trends in melting and boiling points Both the melting and boiling points decrease down the group. When any of the Group 1 metals is melted, the metallic bond is weakened enough for the atoms to move more freely, and is broken completely when the boiling point is reached.

What is the trend in boiling points down the group?

Different groups exhibit different trends in boiling and melting points. For Groups 1 and 2, the boiling and melting points decrease as you move down the group. For the transition metals, boiling and melting points mostly increase as you move down the group, but they decrease for the zinc family.

Do Group 1 have high or low boiling points?

Alkali Metals have lower melting and boiling Points All Group 1 elements have one electron in their outermost shell which is held very weakly by the nucleus.

Does boiling point increase down a group?

In group 7, the further down the group an element is, the higher its melting point and boiling point . This is because, going down group 7: the molecules become larger. more energy is needed to overcome these forces.

What is the trend in boiling points in group 7?

The melting points and boiling points of the halogens increase going down group 7. This is because, going down group 7: the molecules become larger. more energy is needed to overcome these forces.

Why does boiling point increase down Group 14?

Group 14 (carbon family) elements have much higher melting points and boiling points than the group 13 elements. Melting and boiling points in the carbon family tend to decrease moving down the group, mainly because atomic forces within the larger molecules are not as strong.

Why does boiling point increase down group 0?

Boiling points This is because, going down group 0: the atoms become larger. the intermolecular forces between the atoms become stronger. more energy is needed to overcome these forces.

Does Group 1 react with water?

All the alkali metals react vigorously with cold water. This shows that the reactivity of the alkali metals increases as you go down Group 1.

Why does group 7 have low boiling points?

The group 7 elements exist as diatomic molecules . The bond between the atoms in a molecule is very strong, but the forces of attraction between molecules are weak. This explains why group 7 elements have low boiling points.

Why does boiling point increases down the group?

The melting and boiling points increase down the group because of the van der Waals forces. The size of the molecules increases down the group. This increase in size means an increase in the strength of the van der Waals forces.