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What is the trend in melting point and boiling points of the elemets in group 1 and 7?
In Group 1 (alkali metals), the melting and boiling points decrease as you move down the group due to the increase in atomic size and metallic bonding. In Group 7 (halogens), the melting and boiling points increase as you move down the group due to the increase in atomic size and London dispersion forces.
What is the trend in melting points as you go down the group of halogens?
The trend in melting points as you go down the group of halogens is that they generally increase. This is due to the increasing number of electrons and atomic size which results in stronger van der Waals forces between the atoms, leading to higher melting points.
Do the halogens have a high or low melting points?
They have low melting points and high reactivity.
What is the general trend of the melting points of elements on the periodic table?
The general trend of melting points of elements on the periodic table increases from left to right across a period and decreases down a group.
How would you find the relative melting points of a group of substance?
You can compare the relative melting points of substances by looking at their chemical structures, molecular weights, and intermolecular forces. Substances with stronger intermolecular forces (such as hydrogen bonding) typically have higher melting points compared to those with weaker forces. Experimentally, you can also perform melting point tests to directly compare the melting temperatures of the substances.
What is the trend in melting point and boiling points of the elemets in group 1 and 7?
In Group 1 (alkali metals), the melting and boiling points decrease as you move down the group due to the increase in atomic size and metallic bonding. In Group 7 (halogens), the melting and boiling points increase as you move down the group due to the increase in atomic size and London dispersion forces.
Do group one metals have a high melting point?
No. Group 1 metals (commonly called the alkali metals) have low melting points.
Are the elements in the boron group high-melting?
It varies. Boron and thallium both have relatively high melting points while gallium and indium have very low melting points.
Melting points of alkali metals?
Alkali metals have relatively low melting points compared to the other metals. Their exact melting points depend on the element itself. But it would be useful to note that their melting points decreases down group I.
What is the trend in melting points as you go down the group of halogens?
The trend in melting points as you go down the group of halogens is that they generally increase. This is due to the increasing number of electrons and atomic size which results in stronger van der Waals forces between the atoms, leading to higher melting points.
Which atomic group tend to go from higher to lower melting points reading from top to bottom?
Group 3
Do the halogens have a high or low melting points?
They have low melting points and high reactivity.
What is the general trend of the melting points of elements on the periodic table?
The general trend of melting points of elements on the periodic table increases from left to right across a period and decreases down a group.
Why do melting points of group 1 become lower?
The metallic bonds of the alkali metals are are weak.
How would you find the relative melting points of a group of substance?
You can compare the relative melting points of substances by looking at their chemical structures, molecular weights, and intermolecular forces. Substances with stronger intermolecular forces (such as hydrogen bonding) typically have higher melting points compared to those with weaker forces. Experimentally, you can also perform melting point tests to directly compare the melting temperatures of the substances.
What is the relationship between melting point and atomic number for group seven elements?
As you move down Group 7 elements (halogens), the melting point generally increases. This is because the atomic number increases down the group, leading to a greater number of electrons and stronger van der Waals forces between the molecules, resulting in higher melting points.
What are the Boiling and Melting Points of alkaline earth metal?
The boiling points of alkaline earth metals generally increase down the group. For example, the boiling point of beryllium is around 2469°C and the boiling point of barium is around 1860°C. The melting points also generally decrease down the group.
