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About 8% by weight of cathode ray tubes is strontium oxide, which has been the major use of strontium since 1970. [3] [4] Color televisions and other devices containing color cathode ray tubes sold in the United States are required by law to use strontium in the faceplate to block X-ray emission (these X-ray emitting TVs are no longer in production).
Expressing resonance when drawing Lewis structures may be done either by drawing each of the possible resonance forms and placing double-headed arrows between them or by using dashed lines to represent the partial bonds (although the latter is a good representation of the resonance hybrid which is not, formally speaking, a Lewis structure).
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; Appearance. ... Upon heating in the absence of O 2, it degrades to SrO and O 2.
Besides the simple oxide SrO, the peroxide SrO 2 can be made by direct oxidation of strontium metal under a high pressure of oxygen, and there is some evidence for a yellow superoxide Sr(O 2) 2. [13] Strontium hydroxide , Sr(OH) 2 , is a strong base, though it is not as strong as the hydroxides of barium or the alkali metals. [ 14 ]
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Aluminium arsenide – AlAs [7] [8] Aluminium diboride – AlB 2 [9] [10] Aluminium bromide – AlBr 3 [11] Aluminium carbide – Al 4 C 3 [12] Aluminium iodide – AlI 3 [13] Aluminium nitride – AlN [14] Aluminium oxide – Al 2 O 3 [15] Aluminium phosphide – AlP [16] Aluminium chloride – AlCl 3 [17] Aluminium fluoride – AlF 3 [18 ...
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