英语：an element of 接可数名词 还是不可数名词呢?

英语：an element of 接可数名词 还是不可数名词呢? 元件element 可数吗 a bit of 和 an element of 区别, There is an element of chance in everything是什么意思? an amount of 后接可数还是不可数 An abundance of　能接可数名词吗?为什么有接可数的例句 Perhaps there is an element of truth如果后面是two element 是不是there is要变为there are? What is the mass mumber of an element?ps:Please answered in EnglishI want the define of mass mumber of an element an amount of 可不可以修饰可数名词 an army of/ an ocean of +可数还是不可数? diagram of element the element of There is an element of defeating the organization 译There is an element of defeating the organization ...that is separate from the ideological component 英语翻译That the parts all fit together properly is an essential element of mass production. there is an element of doubt in many minds about these two aspects. What is the atomic number of an element?ps:Please answered in English how to coculate the atomic mass of an element如何计算原子质量 The relative atomic mass scale makes it possible to know how many atoms of an element are element接上面 are present in a sample of the element with a measurable mass.这句话的句子成分怎么划分啊?