type: "html5", Browse our dictionary apps today and ensure you are never again lost for words. "noPingback": true, Alkaline earth difluorides possess strong ionic bonds but are insoluble save for beryllium difluoride, which also exhibits some covalent character and has a quartz-like structure. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, iasLog("criterion : cdo_dc = english"); { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776340', position: 'btf' }}, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_mpuslot3_mobile_flex' }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, {code: 'ad_contentslot_1', pubstack: { adUnitName: 'cdo_mpuslot', adUnitPath: '/2863368/mpuslot' }, mediaTypes: { banner: { sizes: [[300, 250], [336, 280]] } }, Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. googletag.pubads().disableInitialLoad(); var mapping_topslot_a = googletag.sizeMapping().addSize([746, 0], []).addSize([0, 550], [[300, 250]]).addSize([0, 0], [[300, 50], [320, 50], [320, 100]]).build(); iasLog("criterion : cdo_pt = ex"); The American Heritage® Science Dictionary { bidder: 'sovrn', params: { tagid: '346693' }}, calcium + chlorine → calcium chloride. }); { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, With other atoms, fluorine forms either polar covalent bonds or ionic bonds. Chemistry is devoted to the study of a wide range of molecules, ranging from the simplest, like those of oxygen, to the more complex molecules like DNA (Deoxyribonucleic Acid). { bidder: 'ix', params: { siteId: '195452', size: [336, 280] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, We hope you are enjoying ScienceStruck! Atoms and complexes connected by non-covalent bonds such as hydrogen bonds or ionic bonds are generally not considered single molecules. {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, The word in the example sentence does not match the entry word. var mapping_leftslot = googletag.sizeMapping().addSize([1063, 0], [[120, 600], [160, 600], [300, 600]]).addSize([963, 0], [[120, 600], [160, 600]]).addSize([0, 0], []).build(); {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, 'cap': true { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot3' }}]}]; { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, }); { bidder: 'ix', params: { siteId: '195456', size: [300, 250] }}, This website uses cookies to improve your experience.