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Group seven elements are:
- manganese
- technetium
- rhenium
- bohrium
Manganese is a component used in the manufacture of stainless steel. Stainless steel is used to skin appliance, or shelving, and refrigeration tubing and compressor tanks. Manganese phosphate is used for rust treatment of iron and steel.
Technetium is radioactive and has no stable isotopes so is not used in appliance manufacturing.
Rhenium is the rarest transitional metal on Earth. It is used in the manufacture of jet engines and rockect motor valves. Because of its rarity, it is one of the most costly metals known, selling for around $150.00 a troy ounce.
Bohrium is an artficially formed element, it does not exist in nature, and the most stable isotope has a halflife of 61 seconds.
Compounds of group 7 elements, such as fluorocarbons like Freon, were previously used as refrigerants in refrigerators due to their low boiling points and efficiency in cooling. However, due to their harmful effects on the environment, such as ozone depletion, many countries have phased out the use of these compounds in favor of more environmentally friendly refrigerants.
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Why are group 7 elements used in refrigerators?
Group 7 elements, like fluorine and chlorine, are used in refrigerators because they are halogens with high electronegativity. They can be used as refrigerants due to their ability to easily change between gas and liquid states at room temperature, making them effective at absorbing and releasing heat as needed for the refrigeration process. Additionally, their low boiling points make them suitable for use in refrigeration systems.
Are both elements and compounds essential for life?
Yes, both elements and compounds are essential for life. Elements are the basic building blocks of all matter, while compounds are formed when elements combine in specific ways. In living organisms, elements are used to form compounds that are necessary for various biochemical processes to occur.
2 examples of elements or compounds used to make jewelry?
Gold and diamonds are common elements and compounds used in making jewelry. Gold is a popular choice for its durability and luster, while diamonds are valued for their brilliance and hardness.
What compounds are used in refrigerators?
Refrigerators use refrigerants, which are compounds that undergo phase changes to provide cooling. Common refrigerants used include hydrofluorocarbons (HFCs) like R-134a and R-410A, as well as hydrochlorofluorocarbons (HCFCs) like R-22 (phased out in many countries due to environmental concerns) and ammonia (in industrial refrigeration).
What criteria is used to choose which group an element belongs to?
Elements are classified into groups on the periodic table based on their similar chemical properties and reactivity. Elements in the same group have the same number of valence electrons, leading to similar bonding behavior and chemical reactions. This grouping helps predict the behavior of elements and their compounds.
Why compounds of group 7 elements are used for X-ray photography?
becuse there are x-ray
Why are group 7 elements used in refrigerators?
Group 7 elements, like fluorine and chlorine, are used in refrigerators because they are halogens with high electronegativity. They can be used as refrigerants due to their ability to easily change between gas and liquid states at room temperature, making them effective at absorbing and releasing heat as needed for the refrigeration process. Additionally, their low boiling points make them suitable for use in refrigeration systems.
Why are elements of group 1 alkali metals and group 7 halogens used as compounds and not as the free elements?
Alkali metals from group 1 are very reactive and can easily react with air or moisture to form compounds. Halogens from group 7 are also highly reactive and tend to form compounds with other elements to satisfy their valence electron configuration. Therefore, it is more common to find them as compounds rather than in their free elemental form.
Why are the elements of group 1 and 7 are mostly used in the form of compounds?
Elements from group 1 (alkali metals) and group 7 (halogens) are highly reactive due to their electronic configurations. As a result, they tend to form compounds easily to achieve more stable electron configurations. Compounds with these elements often exhibit useful properties in various chemical reactions and industrial applications.
How is elements related to compounds?
Elements are the "building blocks" used to "build" compounds. Elements are the "letters of the alphabet" with which the "words" of compounds are "written". Not perfect analogies, but they should give you an idea.
Where are refrigerators used?
Refrigerators are used in houses
Why are groups 1 and 7 elements used as compounds?
Groups 1 and 7 elements are used as compounds because they have a tendency to form stable compounds due to their reactivity. Group 1 elements (e.g. sodium, potassium) are highly reactive metals that readily lose an electron to form a +1 cation, while Group 7 elements (e.g. chlorine, fluorine) are highly reactive nonmetals that readily gain an electron to form a -1 anion. When combined, they form ionic compounds with a 1:1 ratio of cations to anions, such as sodium chloride (NaCl) and potassium iodide (KI).
How group 7 compounds are used in x-ray photography and agriculture?
Group 7 elements, such as manganese in the form of potassium permanganate, are used as contrast agents in medical radiography to enhance visualization and improve diagnostic accuracy. In agriculture, group 7 compounds like manganese sulfate are used as micronutrient fertilizers to correct manganese deficiencies in crops and promote healthy growth.
What are some commonly used compounds on the periodic table?
the periodic table has no compounds it is a table of elements.
Roman numeral should be used when naming which compounds?
Compounds which contain transition elements. cu2so4
Are both elements and compounds essential for life?
Yes, both elements and compounds are essential for life. Elements are the basic building blocks of all matter, while compounds are formed when elements combine in specific ways. In living organisms, elements are used to form compounds that are necessary for various biochemical processes to occur.
What suffix is used in forming the proper names of elements and compounds?
The suffix used in forming the proper names of elements and compounds is "-ide". This suffix is added to the end of the name of the element when it forms a negative ion or combines with other elements to form compounds.
