Periodic Table 元素周期表(相对分子量).pdf,PERIOD 1 IA 18 VIIIA 1 1.008 2 4 1 H Group IUPAC Group CAS Metal Semi Metal Non Metal He Alkaline Metal Chalcogens Element Hydrogen 2 IIA 1 IA Alkaline Earth Metal Halogens Element 13 IIIA 14 IVA 15 VA 16 VIA 17
Hydrogen is the lightest element, and it is also the most abundant one. Hydrogen has important commercial applications, for example, hydrogen fuel cells and the manufacture of chemical products. Uranium is the heaviest element that occurs freely in nature. Ununoctium is heavier and the heaviest kno...
Hydrogen is the lightest element, and it is also the most abundant one. Hydrogen has important commercial applications, for example, hydrogen fuel cells and the manufacture of chemical products. Uranium is the heaviest element that occurs freely in nature. Ununoctium is heavier and the heaviest kno...
, and by an azimuthal quantum number, l, which may assume the values 0, 1, 2,…, n − 1. There are 2l + 1 distinct orbitals for each set of values of n and l. The most stable orbitals, which bring the electron closest to the nucleus, are those with the smallest values of n...
Periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number. When the elements are thus arranged, there is a recurring pattern called the ‘periodic law’ in their properties, in which elements in t
Rhenium is an extremely rare element with atomic number 75 & represented by the symbol Re in the Periodic Table. It is used in petroleum-reforming & jet engines. Learn more about its applications, uses, properties and more @ BYJU'S.
Uranium L°6 1.38 Np 7.353 5.6437 1072 1803 [Xe] 4f 6 6s2 +2,3 (244) 94 Samarium Eu 64 157.25 9 6 20.45 6.2657 644 4000 [Rn] 5f 4 6d 1 7s2 +3,4,5,6 Neptunium L11/2 1.36 Pu 5.244 5.6704 822 1527 [Xe] 4f 7 6s2 +2,3 (243) 95 Europium S°...
157 TERBIUM 159 DYSPROSIUM 163 HOLMIUM 165 ERBIUM Er Tm Yb Lu 167 THULIUM 69 70 71 169 YTTERBIUM 173 LUTETIUM 175 89 ACTINIUM Ac 227 90 THORIUM Th 232 91 PROTACTINIUM Pa 231 92 URANIUM * The atomic weights listed on this Table of Elements have been rounded to the nearest whole number. ...
Uranium 93 Np☢ 237.05 Neptunium 94 Pu☢ 244.06 Plutonium 95 Am☢ 243.06 Americium 96 Cm☢ 247.07 Curium 97 Bk☢ 247.07 Berkelium 98 Cf☢ 251.08 Californium 99 Es☢ 252.08 Einsteinium 100 Fm☢ 257.10 Fermium 101 Md☢
uranium u 1789 102 93 237 neptunium np 1940 102 94 244 plutonium pu 1940 102 95 243 americium am 1944 102 96 247 curium cm 1944 102 97 247 berkelium bk 1949 102 98 251 californium cf 1950 102 99 252 einsteinium es 1952 102 100 257 fermium fm 1952 102 101 258 mendelevium md ...