Elements in the same group have the same number of what? A. Protons B. Neutrons C. Electrons D. Valence E. lectrons 相关知识点: 试题来源: 解析 D。原因:“Elements in the same group have the same number of valence electrons.”。 反馈 收藏 ...
What element has 13 electrons? If a neutral atom loses an electron what is formed? What is the net charge of an atom? What is the ground-state electron configuration of a neutral atom of nickel? What is a metallic atom? What element has 6 protons, 8 neutrons, and six electrons?
A certain atom has an atomic mass of 19 and atomic number of 9. Using a periodic table, what element is this? What is the atomic number of an element with 10 protons, 11 neutrons, and 10 electrons? a) 11 b) 21 c) 10 d) 31 What is the atomic number of an...
百度试题 结果1 题目6 An atom of element Q contains 19 electrons, 19 protons and 20 neutrons.What is Q? B A calcium B potassium C strontium D yttrium 相关知识点: 试题来源: 解析 B 反馈 收藏
Atoms: Atoms are the purest form of matter. They consist of protons, neutrons, and electrons. The periodic table lists all of the different types of atoms that are known to exist and are known as elements. Answer and Explanation: An atom that has more protons than electrons is called a ...
Thanks to these bonds, our world is made of a rich variety of elements, ranging from hydrogen – the very lightest, with one proton and up to two neutrons, all the way up to uranium – the heaviest naturally occurring element, with 92 protons and 146 neutrons in its most common isotope...
a毫无疑问 ) he is qualified for the job. Without a doubt) he is qualified for the job. [translate] aAn atom containing 34 protons, 43 neutrons, and 34 electrons would have what symbol? 包含34个氢核、43个中子和34个电子的原子将有什么标志? [translate] ...
ICSEC - Grade 09 - CHEMISTRY - Atomic Structure And Chemical Bonding - Q23
Formula used: Atomic number + Number of neutrons Complete step by step answer:Sodium is an alkali metal. It holds its place in the periodic table as the first element of the 3rd period. It is the eleventh element in the periodic table. Therefore,The atomi...
In 1937, they got liquid helium-4, that is helium with 2 protons and 2 neutrons, down to 2.2 K. At that point, it becomes what is known as a superfluid. There is zero viscosity and friction at this temperature. That means if you stir something which demonstrates superfluidity, it will...