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Is it true when elements chemically combined they form compounds that have properties that are similar to those of the uncombined elements?
Well, let's see . . . -- Sodium is a poisonous, corrosive metal, that's a waxy solid at room temperature. -- Chlorine is a poisonous halogen that's a gas at room temperature. When sodium and chlorine chemically combine, they form sodium chloride, which is table salt. -- Hydrogen is a gas at room temperature, and forms an explosive mixture with air. -- Oxygen is a gas at room temperature, we breathe it, and many thousands of other substances will burn in it. When hydrogen and oxygen chemically combine, they form dihydrogen oxide, which is water. Nope. Don't think so.
The fact that hydrogen forms diatomic molecules makes it similar to what family?
The fact that hydrogen forms diatomic molecules makes it similar to the halogen family, which also consists of elements that typically exist as diatomic molecules in their natural state, such as chlorine and fluorine.
What is the pale yellow gas considered the most reactive of all elements?
The halogen gas that is that most reactive of all elements is Fluorine
What is the halogen that forms a purple vapor when heated?
The halogen that forms a purple vapor when heated is iodine. When iodine crystals are heated, they sublimate, transitioning directly from a solid to a gas, producing a characteristic violet or purple vapor. This property is due to the molecular structure of iodine, which allows it to easily vaporize at elevated temperatures.
What is the main element that combines with almost all of the other elements?
Alkali Metals, Alkaline-Earth Metals, and halogens are never found in nature uncombined.
Why are the halogen elements so dangerous in their uncombined forms?
Halogen elements are dangerous in their uncombined forms because they are highly reactive due to their strong tendency to gain an electron to achieve a full outer electron shell. This reactivity can lead to them forming corrosive acids, toxic fumes, or explosive compounds with other elements. Additionally, they can easily react with organic compounds, potentially causing harmful chemical reactions.
Oxidation number of an uncombined element?
The oxidation number of an uncombined element is zero. Uncombined elements, also known as elemental forms, have no charge and are considered to have an oxidation number of zero in their pure state.
Is bromine chemically active or inactive?
Bromine is chemically active. It is a halogen and readily forms compounds with other elements, making it reactive in chemical reactions.
Is bromine chemically reactive or inert?
Bromine, as a group 17 halogen, is extremely reactive
Is it true when elements chemically combined they form compounds that have properties that are similar to those of the uncombined elements?
Well, let's see . . . -- Sodium is a poisonous, corrosive metal, that's a waxy solid at room temperature. -- Chlorine is a poisonous halogen that's a gas at room temperature. When sodium and chlorine chemically combine, they form sodium chloride, which is table salt. -- Hydrogen is a gas at room temperature, and forms an explosive mixture with air. -- Oxygen is a gas at room temperature, we breathe it, and many thousands of other substances will burn in it. When hydrogen and oxygen chemically combine, they form dihydrogen oxide, which is water. Nope. Don't think so.
Is fluorine an alkali?
NO!!!! Fluorine is an elemental gas in the HALOGEN Group. The word 'halogen' is from Latin and means 'salt maker'. So when fluorine is combined with a Group (I) or (II) metal (Alkali/Alkali Earth Metal) ot forms a salt. e.g. 2Na(s) + F^(2)(g) = 2NaF(s) ( The chemical salt).
The fact that hydrogen forms diatomic molecules makes it similar to what family?
The fact that hydrogen forms diatomic molecules makes it similar to the halogen family, which also consists of elements that typically exist as diatomic molecules in their natural state, such as chlorine and fluorine.
What are comparative forms of dangerous?
more dangerous
What is the pale yellow gas considered the most reactive of all elements?
The halogen gas that is that most reactive of all elements is Fluorine
What kind of elements are halides oxides sulfates sulfides carbonates and native elements?
These are types of chemical compounds. Halides contain halogen elements (e.g. chloride, fluoride), oxides contain oxygen, sulfates contain sulfate ions, sulfides contain sulfide ions, carbonates contain carbonate ions, and native elements are pure forms of elements (e.g. gold, silver).
What kind of bond does a halogen and an alkaline earth metal make?
alkaline earth metal forms a +2 cation and halogen forms a -1 anion alkaline earth metal is a metal and halogens are non metals therefore the bond between them is ionic
What compounds are formed when group 7 elements react with the air?
When group 7 elements (halogens) react with air, they form oxides and/or halides. For example, chlorine forms chlorine dioxide (ClO2) or chlorine gas (Cl2) when reacting with air. The specific compound formed depends on the specific halogen and conditions of the reaction.
