WebNov 21, 2024 · Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. The chemical symbol for … WebMar 1, 2024 · An atom’s atomic number is equal to the number of protons in its nucleus or the number of electrons in an electrically neutral atom. Atomic Number = Number of Protons For example, the Copper element has 29 electrons and 29 protons in its atom, therefore the Atomic Number of Copper is 29.

atomic number of an element is 17 . what is its valency and …

WebThe atomic number of an element is equal to the total number of protons in the nucleus of ... WebGroup 17 elements are collectively called halogens (In Greek: halo means salt and genes mean producing, so collectively salt producing) and it consists of fluorine, chlorine, bromine, iodine, and astatine. The similarity … manila city government website

Atomic number - Wikipedia

Webatomic number 17 - a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and … WebThis is a list of the 118 chemical elements that have been identified as of 2024. A chemical element, often simply called an element, is a type of atom which has the same number of protons in its atomic nucleus (i.e., the same atomic number, or Z).. The definitive visualisation of all 118 elements is the periodic table of the elements, whose history … Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron a… manila city hall business permit extension