The boiling points of the elements in Group 7 tend to increase as you go down the group because the molecules get larger and the intermolecular forces get ...

The melting points and boiling points of the halogens increase as you go down the group. This is because larger molecules within the same group experience ...

Hence, the bonds are weaker and less energy is required to break them. Elements in the group seven (i.e. the halides form fluorine to iodine) normally form ...

The boiling point of the halogens increases as you go down the group. The halogens exist as diatomic molecules, with both atoms sharing an electron to ...

As we go down from HCl to HI, the halide element becomes less electronegative. This means the bond become less polarised and the permanent dipole permanent ...

The boiling point then increases down the group from HCl to HI because the halogens increase in size. This means that the van der waal forces are stronger ...

Going down group 1 the period number increases. This means the number of shells increases, leading to a decrease in electrostatic attraction. Не найдено: 7 | Нужно включить: 7

With higher atomic numbers going down the group, there is an increase in valence electrons which in turn increases the probability that there are instantaneous ...

When the reaction with oxygen occurs, these two electrons are donated by the magnesium, forming positively charged Mg 2+ ions.

Melting point increases as it takes more energy to overcome the electrostatic forces of attraction between positive ions and delocalised electrons. Не найдено: 7 | Нужно включить: 7