阅读理解
Authors (作者)
Alexandru Micu: Author
ZME Science author profile | e-mail: alex@zmescience.com
Main focus: technology, biology
Curiosity (好奇心) is what drives Alex forward-his interest in learning more about the planet being matched only by his ability to discuss things with a light heart. Alex tries to make others more interested in special science and technology. He does things in his own way.
Dragos Mitrica: Author
ZME Science author profile | e-mail: dragos@zmescience.com
Main focus: wheather
Dragos loves nature, and does everything he can to understand it. This interest led him to many unexpected places in his life, and now, he mainly studies and understands how ancient (古代的) weather changed, and what this means for the future.
Henry Conrad: Author
ZME Science author profile | e-mail: henrykconrad@gmail.com
Main focus: technology
Henry Conrad is a game developer from Albuquerque, New Mexico. Whenever he's not working or reading the latest tech news, he enjoys writing about the latest inventions and technology, which benefits (有益) him a lot. It helps him find rich writing materials (材料).
Mihai Andrei: Editor-in-chief
ZME Science author profile | e-mail: andrei@zmescience.com
Main focus: geophysics, environment
Andrei has put a lot of sweat and tears into ZME Science ever since he was a student. He is always looking for the most interesting subjects, presenting them in a way that everybody can understand. He believes that education is the key towards a better future and he tries to persuade people to become better persons of the planet. His background is in Geology and Geophysics, but now, he focuses more on environmental studies.
最小的元素，Y原子最外层电子数是次外层电子数的3倍，Z、W、R处于同一周期，R与Y处于同一族，Z、W原子的核外电子数之和与Y、R原子的核外电子数之和相等。下列说法正确的是：
