periodic_table PeriodicTableoftheElements Writtenby:BillByles-bylesb@internet4classrooms.com Selectanelement (=Internetlink)Name:HydrogenSymbol:HAtomicNumber:1AtomicMass:1.00794amuMeltingPoint:-259.14°C(14.009985°K,-434.45203°F)BoilingPoint:-252.87°C(20.280005°K,-423.166°F)Name:Helium...
Name:NitrogenSymbol:NAtomicNumber:7AtomicMass:14.00674amuMeltingPoint:-209.9°C(63.250008°K,-345.81998°F)BoilingPoint:-195.8°C(77.35°K,-320.44°F)Name:OxygenSymbol:OAtomicNumber:8AtomicMass:15.9994amuMeltingPoint:-218.4°C(54.750008°K,-361.12°F)BoilingPoint:-183.0°C(90.15...
(25oC - 101 kPA) Ne = Gas Fe = Solid Ga = Liquid Tc = Synthetic B 13 Boron 26.98 14 C Carbon 28.09 N Nitrogen 15 30.97 O Oxygen 16 32.07 F Fluorine 17 35.45 18 Ne Neon 39.95 3 Na 19 Sodium 39.1 Mg Magnesium 20 40.08 3 21 IIIB 44.96 4 22 IVB 47.88 5 23 VB 50.94 6 24 ...
1 1 2.20 1 -1 Hydrogen 1.00794 H1 IA Prof Mokeur's Periodic Table 2 18 VIIIA 4.002602 He 2 2 6.941 0.98 1 Lithium Li 3 9.012182 1.57 Beryllium Be 4 IIA Symbol 2 Electronegativity Name 3 4 5 6 1.00794 1 2.20 H1 Atomic number Relative atomic mass Oxidation number 8 9 10 11 12 13...
periodic table of elements(元素周期表),简称periodic table(周期表)。 整个周期表根据元素价电子层排布方式被分为了五个大块的block(区): s-block,f-block,d-block,ds-block,p-block 这些区外,元素周期表还被人们划分为了更基本的“周期”与“族”。
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 VIIA Helium 3 6.94 4 9.01 Atomic Number 1 1.008 Atomic Mass Transiti...
The Periodic Table of Elements 1 HYDROGEN H 1 7 6 4 BERYLLIUM 3 LITHIUM Li 23 Be 9 24 CARBON C 12 23 Atomic Number = Number of Protons = Number of Electrons Chemical Symbol Chemical Name Atomic Weight = Number of Protons + Number of Neutrons* 5 6 2 BORON B 11 27 CARBON C 12 28...
Atomic mass:The standard atomic weight of an element is the average mass of the element written in atomic mass units (amu). Even though each atom has roughly a whole number of atomic mass units, you will notice that the atomic mass on the periodic table is a decimal; that's because the...
Element name Symbol ElectronegativityMercury 80 Hg 200.59 1.9 Atomic # Avg. Mass Boron 5 B 10.81 2.0 Carbon 6 C 12.01 2.5 Nitrogen 7 N 14.01 3.0 Oxygen 8 O 16.00 3.5 Fluorine 9 F 19.00 4.0 Neon 10 Ne 20.18 --- Sodium 11 Na 22.99 0.9 Magnesium 12 Mg 24.31 1.2 3 4 5 6 7 8 9 ...
At first glance, the periodic table looks very complex. In fact it is a large grid of every element that exists. The elements are arranged in order of their atomic number. The atomic number is the number of protons each atom has in its nucleus. By arranging the elements in this way, ...