8 февр. 2016 г. · It is an element. Helium is a noble gas and the most nonreactive one. Helium does not form a compound because its electron shell is ... |
17 авг. 2022 г. · No, helium is not a compound. Helium is an element with atomic number 2. It is a non-toxic, colourless, tasteless, odourless, inert, monatomic ... |
16 апр. 2018 г. · It is an inert gas. Helium is a chemical element with symbol He and atomic number 2. Any element is a pure substance since all the atoms makes ... |
19 дек. 2021 г. · Helium is an element, regardless of where you find it. Specifically, it's the second element on the periodic table, which means that all helium atoms have two ... |
8 мар. 2017 г. · A molecule is a chemical compound formed when two or more atoms join together chemically. Helium, on the other hand, is a noble gas and exists ... |
11 сент. 2021 г. · Helium is a member of the noble gas family. The noble gases are the elements in Group 18 (VIIIA) of the periodic table. |
24 окт. 2022 г. · Helium is a neon gas also called an inert gas. Elements form compounds to attain stable octet or duplet configurations i.e to become stable by ... |
5 сент. 2018 г. · Helium is the second most abundant element in the universe . But there are no known compounds of helium. There is only one "stable" Helium model ... |
9 авг. 2015 г. · The chemical symbol for the element helium is "He." Helium is a noble gas, and it is the second element on the periodic table with atomic number ... |
27 июн. 2023 г. · But there are no known compounds of helium. There is only one "stable" Helium model. There are NO compounds of Helium atom. |
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