新教材高中化学专题2原子结构与元素性质第2单元元素性质的递变规律课件苏教版选择性必修2

,第二单元元素性质的递变规律,必备知识,自主预习储备,关键能力,情境探究达成,课后素养落实,1,2,4,学习效果,随堂评估自测,3,第二单元元素性质的递变规律,专题,2,原子结构与元素性质,必备知识,自主预习储备,NO.1,大,小,小,大,越来越弱,越来越弱,越来越强,越来越强,1,8,轨道能级,气态,最低,第一电离能,难易程度,越小,失去,越大,难,最低,第二电离能,最外层电子数,增多,增大,增强,减小,相同,核电荷数,最外层,减小,减弱,增大,最小,最大,核外电子排布,较低,较大,高,吸引电子能力,增大,增强,减小,减弱,金属,非金属,弱,正,强,负,共价键,离子键,关键能力,情境探究达成,NO.2,学习任务,1,学习任务,2,简单粒子半径大小的比较,1,3,5,2,4,1,3,5,2,4,1,3,5,2,4,2,1,3,4,5,2,1,3,4,5,3,1,2,4,5,3,1,2,4,5,4,1,2,3,5,4,1,2,3,5,2,4,5,1,3,2,4,5,1,3,2,4,5,1,3,电离能和电负性大小的比较,1,3,5,2,4,1,3,5,2,4,2,1,3,4,5,2,1,3,4,5,3,1,2,4,5,3,1,2,4,5,4,1,2,3,5,4,1,2,3,5,2,4,5,1,3,2,4,5,1,3,学习效果,随堂评估自测,NO.3,1,3,5,2,4,1,3,5,2,4,2,1,3,4,5,2,1,3,4,5,3,1,2,4,5,3,1,2,4,5,4,1,2,3,5,4,1,2,3,5,2,4,5,1,3,2,4,5,1,3,2,4,5,1,3,2,4,5,1,3,2,4,5,1,3,2,4,5,1,3,