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Ruthenium is a chemical element; it has symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Like the other metals of the platinum group, ruthenium is unreactive to most chemicals.
A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...
Ruthenium 44 Ru 101.07: Rhodium 45 Rh 102.91: Palladium 46 Pd 106.42: Silver 47 Ag 107.87: Cadmium 48 Cd 112.41: Indium 49 In 114.82: Tin 50 Sn 118.71: Antimony 51 Sb 121.76: Tellurium 52 Te 127.60: Iodine 53 I 126.90: Xenon 54 Xe 131.29: 6: Caesium 55 Cs 132.91: Barium 56 Ba 137.33: Lutetium 71 Lu 174.97: Hafnium 72 Hf 178. ...
Phishing scams happen when you receive an email that looks like it came from a company you trust (like AOL), but is ultimately from a hacker trying to get your information. All legitimate AOL Mail will be marked as either Certified Mail , if its an official marketing email, or Official Mail , if it's an important account email.
• Fake email addresses - Malicious actors sometimes send from email addresses made to look like an official email address but in fact is missing a letter(s), misspelled, replaces a letter with a lookalike number (e.g. “O” and “0”), or originates from free email services that would not be used for official communications.
The first letter is always capitalized. While the symbol is often a contraction of the element's name, it may sometimes not match the element's English name; for example, "Pb" for lead (from Latin plumbum) or "W" for tungsten (from German Wolfram). Elements which have only temporary systematic names are given temporary three-letter symbols (e.g ...
Consider reporting the scam to organizations like the National Consumers League's Fraud.org, the Federal Trade Commission, the Federal Communications Commission, the Better Business Bureau's scam ...
41 of the 118 known elements have names associated with, or specifically named for, places around the world or among astronomical objects. 32 of these have names tied to the places on Earth, and the other nine are named after to Solar System objects: helium for the Sun; tellurium for the Earth; selenium for the Moon; mercury (indirectly), uranium, neptunium and plutonium after their respective ...