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Halogens are highly reactive nonmetals that readily gain an electron to achieve a full valence shell, forming ions with a -1 charge. Alkali metals are highly reactive metals that readily lose an electron to achieve a full valence shell, forming ions with a +1 charge. This reactivity is due to their respective tendencies to achieve a stable electron configuration.
Alkali metals often react violently especially so with substances such as water, halogens or Group 6 elements. This is due to their lone electron occupying the outermost shell (or s-orbital if you will) facing a low effective nuclear charge and thus, only weakly attracted to the nucleus. Therefore, it is easily lost to other compounds with a high electronegativity (tendency to attract/accept electrons) such as chlorine and fluorine, resulting in an exothermic reactions. In the case of water, any alkali metal M will react with water according to 2M(s)+2H2O(l)=2MOH(aq) + H2(g). For reactions with halogens (denoted as 'H'), it is M(g)+ H(g)-> MH(s)
Both groups react heavily. Especially alkali metals. If you want some fun, go watch YouTube at the subject sodium in water, potassium in water, or cesium in water.
Halogens can do quite some damage in sufficient quantities.
The reactivity on any element depends on its valence electrons. The Alkali metals have one valence electron. They tend to donate it to another element to be the +1 ion.
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What happens to the chemical reactivity of alkali metals as you increase atomic numbers?
The chemical reactivity of alkali metals increase when the atomic number increase.
Where are the alkali metals and the halogens located on the periodic table?
The alkali metals are located in Group 1 of the periodic table, while the halogens are located in Group 17. Alkali metals are highly reactive metals that include elements like lithium, sodium, and potassium, while the halogens are a group of highly reactive nonmetals that include elements like fluorine, chlorine, and iodine.
Who would alkali metals least likely bond with?
Halogens.
Why do halogens form compounds with alkali metals?
Because halogens form negative ions, alkali metals form positive ions; both are reactive elements and an electrostatic attraction exist.
What are element groups 1 and 7 called?
Element group 1 is called the alkali metals, while element group 7 is called the halogens.
What are examples of high reactivity?
Very reactive elements are alkali metals and halogens.
Differences between alkil metals and halogens?
Alkali metals are a group of elements found in Group 1 of the periodic table, known for their high reactivity and tendency to lose an electron to form a positive ion. Halogens are a group of elements found in Group 17 of the periodic table, known for their high reactivity and tendency to gain an electron to form a negative ion. Alkali metals are metals, while halogens are nonmetals.
What characteristic does the alkali metals alkaline earth metals and the halogens have in common?
All alkali metals, alkaline earth metals, and halogens have a common valence electron configuration: alkali metals have 1 valence electron, alkaline earth metals have 2 valence electrons, and halogens have 7 valence electrons. This shared electron configuration influences their chemical properties, such as reactivity and bonding tendencies.
What groups are the very reactive elements from?
The very reactive elements are typically found in Group 1 (alkali metals) and Group 17 (halogens) of the periodic table. Alkali metals tend to react violently with water, while halogens are known for their high reactivity and tendency to form salts with metals.
What is three families from the periodic table?
Three families from the periodic table are the alkali metals (group 1), the halogens (group 17), and the noble gases (group 18). Alkali metals are highly reactive, halogens are nonmetals that are also reactive, and noble gases are inert gases with low reactivity.
What is the reactivity group for chlorine?
Chlorine belongs to the reactivity group of halogens. Halogens are highly reactive nonmetals that readily form compounds with other elements. Chlorine, in particular, is known for its strong oxidizing properties.
What is the correct list of elemental families in order going from left to right?
The correct order of elemental families from left to right is alkali metals, alkaline earth metals, transition metals, metalloids, nonmetals, halogens, and noble gases.
What happens to the chemical reactivity of alkali metals as you increase atomic numbers?
The chemical reactivity of alkali metals increase when the atomic number increase.
What are the families in periodic table?
alkali metals, alkali earth, transition metals, non metals, halogens, noble gases
The Family of what is the most reactive group of metals in the periodic table?
The most reactive group of metals in the periodic table is Group 1, the alkali metals. These metals are highly reactive due to their low ionization energies, which means they readily lose their outermost electron to form positive ions. This reactivity increases as you move down the group due to the decreasing ionization energies.
What kind of chemical bond is formed by transfer of electrons between alkali metals halogens?
An ionic bond is formed by electron transfer between alkali metals and halogens.
How do you ust the periodic table to identify alkali metals alkaline earth metals transition metals halogens and noble gases?
You can identify alkali metals in Group 1, alkaline earth metals in Group 2, transition metals in Groups 3-12, halogens in Group 17, and noble gases in Group 18 on the periodic table. Each group has characteristic properties that define them, such as valence electrons and reactivity, which can help in their identification.
