all group 2 metals are light weight with high melting points beryllium however has the highest melting point due to the low number of electrons shielding the nucleus fro the delocalised atoms
As the atomic number increases so does the melting point, meaning the the molecules get stronger therefor you need a higher melting point to break the molecules.
Chemistry books say that he grouped the elements by atomic weight. That is not the same as density.
There are 6 elements of the group 2 elements and all of them have relatively similar melting points. All of these 6 elements are solids and have quite a high melting point but the average from all 6 of them is around 900 degrees Celsius. At around this temperature, most of the elements will start to melt.
The melting point is greater.
Elements in group 1 are called Alkali Metals, after that group 2 elements are called Alkali Earth Metals, group 3-12 elements are called Transition Elements.
It varies. Boron and thallium both have relatively high melting points while gallium and indium have very low melting points.
As the atomic number increases so does the melting point, meaning the the molecules get stronger therefor you need a higher melting point to break the molecules.
Chemistry books say that he grouped the elements by atomic weight. That is not the same as density.
The Actinoids group contain all the synthetic elements. All the elements that have an atomic weight of 95 and above do not occur naturally. They are part of the actinoid elemental group.
Nitrogen has an extremely low melting point. The element nitrogen solidifies at -210 °C, only 63° above absolute zero. A phase change can be made under very high pressure, and the resultant solid is then stable at normal pressure if kept cold enough. This has the potential for making nitrogen superconducting magnets.
These elements have similar chemical properties.
There are 6 elements of the group 2 elements and all of them have relatively similar melting points. All of these 6 elements are solids and have quite a high melting point but the average from all 6 of them is around 900 degrees Celsius. At around this temperature, most of the elements will start to melt.
elements are in the same group since they react similarly to other elements in that group.
Group 1 Elements (elements in the first group [column]) are classed as Alkali Metals. Group 2 Elements (elements in the second group [column]) are classed as Alkaline Earth Metals. All elements not in a representative group are classed as Transition Metals. Group 3 Elements (elements in the third full group [coulumn]) are classed as Earth Metals
main group elements
Group 17 elements are called the halogens. Group 18 elements are called the noble gases.
Group 17 elements are called the halogens. Group 18 elements are called the noble gases.