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Fluorine = 9
Chlorine = 17
Bromine = 35
Iodine = 53
Astatine = 85
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What is the relation between the halogens and their atomic numbers?
The halogens are a group of elements in the periodic table that includes fluorine, chlorine, bromine, iodine, and astatine. They are located in Group 17, and their atomic numbers increase across the period from fluorine (atomic number 9) to astatine (atomic number 85). This means that each halogen element in this group has one more proton in its nucleus compared to the previous element, resulting in an increase in atomic number.
What are some elements that do not have a permanent name yet?
Some recently discovered elements in the periodic table, such as the superheavy elements with atomic numbers above 118, do not have permanent names yet. They are typically given placeholder names based on their atomic numbers until the International Union of Pure and Applied Chemistry (IUPAC) officially approves a name.
What is an example of atomic numbers?
Atomic number= number of protons. Hydrogen atomic number=1
What is Oxidation number of halogens?
Halogens typically have an oxidation number of -1 in compounds because they have seven valence electrons and need to gain only one electron to achieve a full octet. Exception: in compounds with oxygen or other halogens, halogens may have positive oxidation numbers.
Why the oxidation number of halogens are varied?
The oxidation numbers of halogens can vary because they have seven valence electrons, making it possible for them to gain or lose different numbers of electrons to attain a stable electron configuration. This flexibility allows halogens to exhibit a range of oxidation states in chemical compounds, such as -1, +1, +3, +5, +7.
What is the reactivity for the halogens?
The reactivity of halogens decreases with increasing atomic number.
What is the relation between the halogens and their atomic numbers?
The halogens are a group of elements in the periodic table that includes fluorine, chlorine, bromine, iodine, and astatine. They are located in Group 17, and their atomic numbers increase across the period from fluorine (atomic number 9) to astatine (atomic number 85). This means that each halogen element in this group has one more proton in its nucleus compared to the previous element, resulting in an increase in atomic number.
What is halogens atomic number?
The halogens are located on the left of the noble gases on the periodic table. These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
What trends the periodic table should be expected as the atomic number decreases in the halogens?
Halogens with lower atomic number are more reactive and less dense. Also iodine is solid, bromine liquid and the first halogens are gases.
What are some names of halogens?
blop
Do the halogens have different numbers of valence electrons?
no, but lower halogens have different oxidation states.
What is the difference between the atomic number and the valence number of an atom?
Describe the reactivity of halogens
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 is the difference between the atomic number of an element and the number of valence electrons?
Describe the reactivity of halogens
If an element of atomic number 118 is ever synthesized what properties might you expect it to have?
noble halogens
What is the difference between the atomic number of an element and number of valence electrons?
Describe the reactivity of halogens
What are the halogens from the lowest to highest atomic number?
Fluorine, chlorine, bromine, iodine, astatine (ununseptium?)
