div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Northern Highlands Regional HS OverviewInvestigation IV—A Subatomic World Island of Stability Name: Period: Lesson 1 —Island of Stability Date: Purpose: Some combinations src=https:reader035fdocumentsusreader035viewer20220711095fe3ebc47d88097fc03f18d0html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Northern Highlands Regional HS OverviewInvestigation IV—A Subatomic World Island of Stability Name: Period: Lesson 1 —Island of Stability Date: Purpose: Some combinations src=https:reader035fdocumentsusreader035viewer20220711095fe3ebc47d88097fc03f18d0html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv