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Why are the elements of group 6 called hydrides?
The elements of group 6 (chromium, molybdenum, tungsten, and seaborgium) are called hydrides because they can form compounds with hydrogen known as hydrides. These hydrides typically exhibit metallic or covalent behavior depending on the element and its oxidation state, making them a distinct group within the periodic table.
How many things react with hydrigen gas?
Many elements and compounds can react with hydrogen gas, such as oxygen to form water, halogens to form hydrogen halides, and metals to form metal hydrides. In general, hydrogen gas can react with many elements and compounds under the right conditions.
What are complex hydrides?
Complex metal hydrides are hydrides containing in the molecule two cations - as LiAlH4.
How do you classify hydrides?
There are three types of hydride: saline, metallic and covalent (there are alternative names for the types of hydride, but these are most common). Saline hydrides have crystalline, salt like structures, and are formed with hydrogen and the group 1 and group 2 metals (the alkali metals and the alkaline earth metals). Metallic hydrides are brittle solids with fairly simple structures, generally formed between hydrogen and the transition metals. They can often have non-integer stoichiometries, e.g. ZrH1.3. Covalent hydrides are formed between hydrogen and the p-block elements, and tend to be gases as room temperature (there are exceptions to this, because of hydrogen bonding).
When alkali metals are heated with hydrongen they form?
we call them hydrides. Hydrides are forming by the reaction.
Why group 7 8 9 elements do not form hydrides?
Group 7 (halogens), Group 8 (noble gases), and Group 9 elements (which are typically not recognized as a separate group in the periodic table) generally do not form stable hydrides due to their electronic configurations and bonding characteristics. Halogens can form hydrides (like HF, HCl), but noble gases have complete valence shells and are largely inert, making them unlikely to react with hydrogen. Additionally, elements in these groups either lack the necessary reactivity or do not have suitable orbital interactions to form stable compounds with hydrogen.
Why are the elements of group 6 called hydrides?
The elements of group 6 (chromium, molybdenum, tungsten, and seaborgium) are called hydrides because they can form compounds with hydrogen known as hydrides. These hydrides typically exhibit metallic or covalent behavior depending on the element and its oxidation state, making them a distinct group within the periodic table.
What kinds of compounds do metals ussually forms?
Ex.: oxides, sulphides, nitrides, carbides, hydrides, selenides, arsenides, borides, oxides, hydroxides, etc.
How many things react with hydrigen gas?
Many elements and compounds can react with hydrogen gas, such as oxygen to form water, halogens to form hydrogen halides, and metals to form metal hydrides. In general, hydrogen gas can react with many elements and compounds under the right conditions.
What elements can chemically combines with plutonium?
Plutonium can chemically combine with elements such as oxygen, chlorine, hydrogen, and nitrogen to form various compounds. It is known to form oxides (such as PuO2), halides (such as PuCl3), hydrides (such as PuH2), and nitrides (such as PuN).
Why is BiH3 the strongest reducing agent amongest the hydrides of group 15 elements?
BiH3 is the strongest reducing agent among the hydrides of group 15 elements because of its high bond dissociation energy. This makes it easier for BiH3 to donate electrons and reduce other compounds. Additionally, bismuth has a lower electronegativity compared to the other group 15 elements, making it more willing to donate electrons in chemical reactions.
What are complex hydrides?
Complex metal hydrides are hydrides containing in the molecule two cations - as LiAlH4.
What element has -1 as an oxidation number?
The halogens (group 17) have an oxidation number of -1, though the halogens below fluorine can have other oxidation numbers as well. Hydrogen can also have an oxidation number of -1 when it forms hydrides.
How did Mendeleev organize the elements to create the periodic table?
Mendeleev organized the elements according to their increasing atomic masses and considered their fundamental properties . He also considered the Hydrides and Oxides formed by the elements.
How do you classify hydrides?
There are three types of hydride: saline, metallic and covalent (there are alternative names for the types of hydride, but these are most common). Saline hydrides have crystalline, salt like structures, and are formed with hydrogen and the group 1 and group 2 metals (the alkali metals and the alkaline earth metals). Metallic hydrides are brittle solids with fairly simple structures, generally formed between hydrogen and the transition metals. They can often have non-integer stoichiometries, e.g. ZrH1.3. Covalent hydrides are formed between hydrogen and the p-block elements, and tend to be gases as room temperature (there are exceptions to this, because of hydrogen bonding).
Why ionic hydrides are called true hydrides?
Ionic hydrides are called true hydrides because they are formed by the direct combination of hydrogen with an electropositive metal, resulting in a compound with characteristics typical of hydrides. These hydrides exhibit ionic bonding between the metal cation and the hydrogen anion, hence the name "ionic hydrides".
What are the differences between Ionic Hydrides and Covalent hydrides?
Ionic hydrides are formed between metals and hydrogen, where hydrogen gains an electron to form the hydride ion. Covalent hydrides are formed between nonmetals and hydrogen, where they share electrons to form covalent bonds. Ionic hydrides are typically solid at room temperature, while covalent hydrides can be gases, liquids, or solids.
