Webtransition metals b. alkali metals c. chalcogens d. halogens e. alkaline earth metals d. halogens all the elements in group 8A are nonmetals and gases at room temperature. of all the groups in the periodic table, only group __________ contains examples of elements that are gas, liquid, and solid at room temperature. WebThe non-metal elements in Group 7 – known as the halogens – get less reactive as you go down the group. This is the opposite trend to that seen in the alkali metals in Group 1 of …
Halogens Facts & Definition A-Level Chemistry Revision …
WebAug 18, 2024 · Of these, all the noble gases (group 18) are monatomic gases, whereas the other gaseous elements are diatomic molecules (H 2, N 2, O 2, F 2, and Cl 2). Oxygen … WebAug 21, 2024 · The inter halogens are generally more reactive than halogens except F. This is because A-X bonds in interhalogens are weaker than the X-X bonds in dihalogen molecules. ... (ClF 5) is a Colorless gas, made by reacting chlorine trifluoride with fluorine at high temperatures and high pressures. It reacts violently with water and most metals and ... goldcare long term care reviews
Halogens Facts & Definition A-Level Chemistry …
WebAug 2, 2024 · The halogen elements are fluorine, chlorine, bromine, iodine, astatine, and possibly tennessine. The halogens are highly reactive nonmetallic elements. They commonly form ionic bonds with metals and … WebHalogens are so reactive, because they have 7 valence electrons, and are very close to having a complete shell of 8 electrons. The halogens will rip an electron from another … WebDec 13, 2024 · Gas at room temperature, highly reactive, most reactive of all halogens, melting point: -219.67 degrees C, boiling point: -188.11 degrees C, pale yellow, white or colorless, toxic, can be fluorescent hc26a1008 humidifier pad