题目

某元素的原子结构示意图如图， 则该原子的核电荷数为该元素属于(金属，非金属)元素，在化学反应中，该元素的原子易(得，失)个电子，变为离子(阳或阴)。 答案：【1】17【2】非金属【3】得【4】1【5】阴Thinking that the students were having an evening class, the teacher left the classroom, ______.A．slowly and gentleB．slowly and gentlyC．slow and gentleD．slow and gently