百度试题 结果1 题目10 An isotope of element Y has 19 protons and 20 neutrons in its nucleus. Which is the symbol for the ion of Y? B2039A YB19192039C YD1919 相关知识点: 试题来源: 解析 B 反馈 收藏
RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook transuranium element (redirected fromSuperheavy element) Encyclopedia Wikipedia Related to Superheavy element:Superheavy atom transuranium element n. Any of various synthetic radioactive chemical elements, sometimes very un...
If an ion contains 50 protons, 68 neutrons, and 48 electrons, what is its symbol? Which element is a noble gas with 18 protons in the nucleus? Explore our homework questions and answers library Search Browse Browse by subject
A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. The term is also used to refer to a pure chemical substance composed of atoms with the same number of protons.[1] Common exampl...
Sign up with one click: Facebook Twitter Google Share on Facebook antiparticle (redirected fromAntielement) Thesaurus Medical Encyclopedia an·ti·par·ti·cle (ăn′tē-pär′tĭ-kəl, ăn′tī-) n. A subatomic particle, such as a positron or antiproton, having the same spin, ma...
The number written to the right of the element's name is the mass number. The mass number represents the number of protons plus neutrons in the nucleus of an atom of the element. The number of protons determines the element, but the number of neutrons in the atom of any one element ...
Protons, which are positively charged particles, and neutrons, which are negatively charged particles, are found inside the nucleus. The negatively charged electrons surround the nucleus of an atom.Answer and Explanation: With the electrons of an atom varying as atoms combine to form a bond, what...
High-energy protons interact with the nucleus of an atom in the same way as neutrons would (via strong interaction). Low-energy protons behave differently and have a much higher probability of interacting with electrons (via Coulomb interaction). Proton beams may, however, produce less accurate ...
How many neutrons are in the nucleus of an atom that has an atomic mass of 36 and an atomic number of 25? An atom has an atomic number of 8 and a mass number of 17. How many protons, neutrons, and electrons does it have?
It occurs as a naturally radioactive silvery-white metal and is one of the more common chemical elements in the Earth’s crust. Denoted by the symbol U, it has atomic number 92 in the periodic table of elements, meaning its nucleus contains 92 positively charged protons, ...