an element is a substance , all of _______ atoms have the sa

an element is a substance , all of _______ atoms have the sa the amount of substance of oxygen atoms is the atoms of given element There is an element of defeating the organization 译 英语翻译Robert Boyle who defined an element as a substance that Perhaps there is an element of truth 英语翻译Everything in the universe is made of atoms,a bit like t The atomic number of an element X is 15.The number of electr 英语翻译An integral element of all decision problems,one without 英语翻译the V-belt is an important element in the field of power 英语作文,The opportunity is an element of success.The opportunit The mass of 0.02mol of a substance is 0.88g