![]() The standard atomic weights and/or the uncertainties of fourteen elements have been changed based on the Atomic Mass. Strontium is a chemical element of the periodic table with chemical symbol Sr and atomic number 38 with an atomic weight of 87. There you can find the metals, semi-conductor(s), non-metal(s), inert noble gas(ses), Halogens, Lanthanoides, Actinoids (rare earth elements) and transition metals. The standard atomic weight of argon and lead have changed to an interval to reflect that the natural variation in isotopic composition exceeds the measurement uncertainty of A r (Ar) and A r (Pb) in a specific substance. Please note that the elements do not show their natural relation towards each other as in the Periodic system. The unity for atomic mass is gram per mol. Fast Facts: Strontium Element Name: Strontium Element Symbol: Sr Atomic Number: 38 Appearance: Silvery-white metal that oxidizes to pale yellow Group: Group 2 (Alkaline Earth Metal) Period: Period 5 Atomic Weight: 87.62 Electron Configuration: Kr 5s2 Discovery: A. The lightest chemical element is Hydrogen and the heaviest is Hassium. These blocks are named for the characteristic spectra they produce: sharp (s), principal (p), diffuse (d), and fundamental (f). Element: Strontium: Atomic Number: 38: Symbol: Sr: Element Category: Alkaline Earth Metal: Phase at STP: Solid: Atomic Mass amu 87.62: Density at STP: 2. ![]() Block Elements are organised into blocks by the orbital type in which the outer electrons are found. The chemical elements ofįor chemistry students and teachers: The tabular chart on the right is arranged by Atomic mass (weight). The atomic number of each element increases by one, reading from left to right. This list contains the 118 elements of chemistry. Separation and Concentration Purification RequestĬhemical elements listed by atomic mass The elements of the periodic table sorted by atomic massĬlick on any element's name for further information on chemical properties, environmental data or health effects. The element strontium (Sr) belongs to the same group as calcium (Ca) in the periodic table.Plant Inspection & Process Optimalisation.
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