How many neutrons are there in 1 ion of 170Er3+?
170 /68 Er has 102 neutrons whether it is an atom or an ion
3 Questions about Platinum as an element.?
1. What is the density of Platinum in terms of g/cm? 21.45 g/cm^3 @ 293 K 2. What does it rank in terms of abundance on Earth? About Number 78. 3. How many isotopes does it have? Nine are usually accepted from mass190 to 198. Only six are common. 4. What is a balanced equation that has Platinum in it? Pt (s) + 3 F2 (g) → PtF6 (s) 5. Also, where can I find a diagram of Platinum as an atom showing protons etc.? See the site below. 6. When does it become a cation/anion and with what charge value? The first Ionizing Energy (loss of the s-electron) is at 868.1 kJ/mol. It becomes Pt+ ion. The second Ionizing Energy level is at about 1791 kJ/mol (for Pt+2). Other forms are also possible.
Why is it the case that when a neutron or proton is added, a new element is formed?
The structure in 3D of the atom changes.For example, it now has a valance open-path for bonding at a particular angle that did not exist previously. The below is the 3D for 17-Cl which has one open path instead of 18-Ar which would NOT have that open path (valance) for bonding (electronegativity).Or, the extra added electrons have a 3D position where they are easily electrically conductive, where the 3D structure without them is tightly bond. Take Column 11, like 29-Cu Copper (with the easily removed electrons green arrow below), versus Column 8 atoms, like 26-Fe Iron, which has less electrons (none in the 3D equatorial position) to become easy electrically conductive. The below shows how 3D subshell (for transitional equatorial (subshell 4s5 electrons in current literature which I think are 4s2 standard and 4eq3 equatiorial, transitional subshells up to 3 in the middle of subshell-d and subshell-f prior teachings) structure define the electrical conductivity Element property.The number of protons balancing the # of electrons works with both electrostatic force and ‘weak force’ axis to build 3D structures that have the chemical properties associated with a specific Atomic Number (# protons, # electrons in a stable atom).
How does a nuclear fusiion work?
Fusion is a process when two atoms are forced to combine outside of normality. This means when extremes occur, such as super-heat, high eletromagnetic radiation, high voltage, High photonic electromagnetic radiation, a mixture of extremes, ect, you can influence two atoms that normally would never combine, combine and form other atoms but release electrons, neutrons, protons (whatever else). This repelling of each other's force causes energy. Sometimes you get, seemingly, more energy than you put into it due to chain reactions ( if you can get it at this stage, and assuming you can control it). There are infinite atom combo's but normally you will see hydrogen and helium as the prime candidates.
What are some of the different uses of holmium?
The chemical element holmium is classed as a lanthanide and rare earth metal. It was discovered in 1878 by Marc Delafontaine and Jacques-Louis Soret.Data ZoneClassification:Holmium is a lanthanide and rare earth metalColor:silvery-whiteAtomic weight:164.9303State:solidMelting point:1470oC, 1743 KBoiling point:2700oC, 2973 KElectrons:67Protons:67Neutrons in most abundant isotope:98Electron shells:2,8,18,29,8,2Electron configuration:[Xe] 4f116s2Density @ 20oC:8.80 g/cm3Show more, including: Heats, Energies, Oxidation,Reactions, Compounds, Radii, ConductivitiesHolmium metal. Image Ref.(5)A brief introduction to the rare earths – lanthanides.Discovery of HolmiumDr. Doug StewartIn 1878 Swiss chemists Marc Delafontaine and Jacques-Louis Soret observed previously unrecorded spectroscopic lines. They announced the discovery of element ‘X’ – the element we now call holmium.(1)In 1879 Per Teodor Cleve in Sweden discovered two new materials – one brown and one green – while working with erbia (erbium oxide). The brown substance he named holmia, which he later found to be holmium oxide, and the green substance he named thulia, which is thulium oxide.(2)Holmium oxide was isolated in 1886 by French chemist Paul Lecoq de Boisbaudran by fractional precipitation.(1a), (3)The pure metal was isolated in 1911 by Otto Holmberg.(3)The element name holmium comes from the Greek word ‘Holmia’ meaning Stockholm.Appearance and CharacteristicsHarmful effects:Holmium is considered to be of low toxicity.Characteristics:Holmium is a bright, soft, silvery-white, rare earth metal that is both ductile and malleable.It does not react in dry air at normal temperatures, but rapidly oxidizes to a yellow oxide (Ho2O3) in moist air or when heated.When present in compounds, holmium exists usually in the trivalent state, Ho3+. Most holmium compounds are brownish yellow in color.(4)Holmium has unusual magnetic properties, including the highest magnetic moment (10.6 µB) of any naturally occurring element.Uses of HolmiumAs a result of its special magnetic properties, holmium is used in alloys for the production of magnets and as a flux concentrator for high magnetic fields.Holmia (holmium oxide) is used as a yellow or red coloring for glass and cubic zirconia.Holmium isotopes are good neutron absorbers and are used in nuclear reactor control rods.Holmium is also used in solid-state lasers for non-invasive medical procedures treating cancers and kidney stones.
What is helium?
Helium is the 2nd most abundant element in the universe with the symbol of He. Helium is an Noble gas with 2 protons and 2 electrons with 2 neutrons. Helium is an colorless gas, but glows red orange when placed in an electric field with an atomic weight of 4 atomic mass units. Helium has an melting point of 0.95 Kelvin, or minus 457.96 degrees Fahrenheit, and an boiling point of 4.222 Kelvin, or minus 452.070 degrees Fahrenheit. Helium is the 2nd lightest element with an density of 0.1786 grams per Liter. Helium was an non-metal. Helium was discovered in 1868 by Pierre Janssen, and Norman Lockyer. Helium was named after the Greek word, helios, which means sun. Helium has 9 isotopes. The longest isotope of helium is He-8 with a half life of 119 milliseconds and the shortest isotope of helium is He-5 with a half life of 700 yoctoseconds. Helium is used in the sun, and in balloons. Helium does not have compounds
CHEMISTRY QUESTION HELP?
9. The oxides of CO and CO2 must have the following carbon-to-oxygen mass ratio A. 12:16, 12:32 B. 12:12, 12:16 C. 12.8, 12:4 D. 12:12, 12:24 10. Every atom contains A. As many neutrons as electrons B. As many protons as neutrons C. As many nuclei as neutrons D. As many electrons as protons 11. Which of the following elements has Z=68 amd A= 167? A. Erbium B. Californium C. Calcium D. Dysporium 12. Atom A has 30 protons, 32 neutrons and 30 electrons. Atom B has 30 protons, 28 neutrons and 30 electrons. Atoms A and B are A. isotopes B. isobars C. isomers D. isoneutrons ______________________________________... MY GUESSES ARE: 9. A 10. D 11. A 12. A
The smallest particle into which an element can be divided without losing its identity is the:?
It depends on the substance, but let's say atom for now. Let's take, say, iron. It's not going to be a neutron or a proton, since those are elementary particles that make up the nucleus of EVERY atom. If you just have a proton, then it could belong to iron, or it could belong to oxygen, or it could belong to praseodymium. Molecules are collections of atoms, usually made up of different parts. For example, water is a molecule - one water molecule is made of two hydrogen atoms and one oxygen atom. If you split those up, you have hydrogen and oxygen atoms, you don't have water. So if it's something like that, then it's a molecule. But let's say it is something you find on the periodic table, like iron or tungsten or erbium. If you split those in to atoms, they'll still be the element they came from. Iron will ALWAYS have twenty-six protons, for instance. If an atom has twenty-six protons, the only thing it can be is iron. You can't split that up any more, because then you just get protons, neutrons and electrons, and they can be in anything. Since the question asked for elements, which is any pure substance which is found on a periodic table, the answer is 1) atom.