已知溴原子的原子结构示意图如下﹕(1)溴原子的原子的序数为_________。(2)溴元素的原子在反应中易得到 个电子,表现为 性(填氧化性或还原性)。(3)溴元素的最高化合价 ____,最低化合价 _____。(4)溴元素的非金属性比氯元素的非金属性 _____(填“强”或“弱”)。(5)写出氯元素,溴元素最高价氧化物对应的水化物的化学式并比较他们的酸性强弱 。
The of AI(人工智能) will enable us to learn more about our brains.( develop)
Fortunately, no one was hurt in the earthquake several weeks ago.(serious)
Shirley is an early bird. It was for her to be late for school today.(usual)
Jessie cooked a meal for her big family by on New Years Eve. (she)
Look! The lady from the left in the photo is my favourite teacher. (six)