1. 砷:大家都晓得,砷(Arsenic)是五价元素,原子外层有五个价电子,如果一个砷原子代替了一个矽原子,那麼砷的四个原子便填上了原来矽四个价电子的位置,但砷的第五个电子无处置身,尴尬得很.
2. arsenic的意思
2. 砒霜:[某些化疗药物]例如:环磷酰胺(cyclophosphamide)和砒霜(arsenic)等. [饮食结构]长期吃含硝酸盐的食品和高脂肪饮食的人群,患病率较高. [慢性感染]例如长期的慢性尿道感染. [家族遗传]祖辈中有患膀胱癌的人群,患病率会比其他人高.
3. 砷, 砒霜:准化组织(ISO) 5439二氧化硅(SiO2) X射线荧光光谱仪三氧化二铁(Fe2O3) 国际标准化组织(ISO) 9061碳酸钙(CaCO3) 国际标准化组织(ISO) 4283五氧化二磷(P2O5) 国际标准化组织(ISO) 6676三氧化二砷,砒霜(arsenic) 国际标准化组织(
4. 砷酸盐:approximation 近似 | arsenic 砷酸盐 | assembly 装配
1. 砷;砒霜
Arsenic is a very strong poison which can kill people.
noun
1. a very poisonous metallic element that has three allotropic forms
arsenic and arsenic compounds are used as herbicides and insecticides and various alloys
found in arsenopyrite and orpiment and realgar
Synonym: Asatomic number 33
2. a white powdered poisonous trioxide of arsenic
used in manufacturing glass and as a pesticide (rat poison) and weed killer
Synonym: arsenic trioxidearsenous anhydridearsenous oxidewhite arsenicratsbane