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What properties do halogens have?
Halogens have many properties but the most important is the high reactivity and high electonegativity.let example of flourine it is so much high reactive that even if it react in dark still it will creat an explosion.
What halogen is most likely to react?
The reactivity of halogens decreases down the group, which means Fluorine is the most reactive halogens as it is the most electronegative elements among the halogens, and also the Periodic Table.
What can you say about reactivity of the halogens as you go down the group from fluorine to astatine?
Reactivity decreases. In other words, fluorine is the most reactive of the halogens while astatine is the lease reactive. This is because the ability to attract electrons(electronegativity) decreases as you go down the group.
Why are the halogens not found naturally in the earth's crust as the pure elements?
The halogens are not found naturally in the earth's crust as pure elements because of their extreme reactivity. Because the halogens are close to having completely filled electron shells, they will often react with other substances in order to gain an electron. As an especially noteworthy case, fluorine is the most reactive of the halogens (and elements in general), and will even react with glass. Therefore, the halogens are found naturally as compounds, not pure elements.
Which metal oxides are insoluble in water and which are soluble?
Metal oxides of high reactivity are soluble in water while those of moderate reactivity are insoluble in water.
Do the halogens have a high or low melting points?
They have low melting points and high reactivity.
What can you tell about an atom that has high electronegativity?
For metals high electronegativity mean low reactivity; for halogens, C, O, N, S, etc. the meaning is high reactivity.
What is the reactivity for the halogens?
The reactivity of halogens decreases with increasing atomic number.
What can you tell about an atom that has a high electro negativity?
It is more likely to attract electrons. :)
What is the family of nonmetal elements with high reactivity?
I believe it's halogens
What are examples of high reactivity?
Very reactive elements are alkali metals and halogens.
Are noble gases high or low reactivity?
low reaction
What property of halogens is harmful?
Halogens are highly reactive, and they can be harmful or lethal to biological organisms in sufficient quantities. This reactivity is due to highelectronegativity and high effective nuclear charge.
Do halogens have high or low ionization energies?
no it does not
How does reactivity change as you move vertically among the halogens?
As you move from Astatine to Fluorine the reactivity increases
What happens to the reactivity of halogens as you go down the group?
the reactivity of halogens goes on decreasing as we go down the group, because of increasing in atomic size of the respective element.
What are non examples of reactivity?
All halogens , carbon and oxygen.
