div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentthe-central-part-of-an-atom-containing-protons-and-23-neutrons-atomic-mass-c-26htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: imagespcmacorgimagespcmacorgDocumentsT3_Exam_Guidepdf · the central part of an atom containing protons and 23 neutrons atomic mass C 26 or protons in the nucleus of loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsinreader030viewer20220410035ea5af4c3b32ac5ad865c150html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentthe-central-part-of-an-atom-containing-protons-and-23-neutrons-atomic-mass-c-26htmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: imagespcmacorgimagespcmacorgDocumentsT3_Exam_Guidepdf · the central part of an atom containing protons and 23 neutrons atomic mass C 26 or protons in the nucleus of loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsinreader030viewer20220410035ea5af4c3b32ac5ad865c150html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentthe-central-part-of-an-atom-containing-protons-and-23-neutrons-atomic-mass-c-26htmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: imagespcmacorgimagespcmacorgDocumentsT3_Exam_Guidepdf · the central part of an atom containing protons and 23 neutrons atomic mass C 26 or protons in the nucleus of loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...