百度试题 结果1 题目30 years ago, scientists___the theory that protons and neutrons are composed of three smaller particles.相关知识点: 试题来源: 解析 came up with 反馈 收藏
百度试题 题目The nucleus of the atom is composed of swiftly moving protons and neutrons that are held together by very strong forces. A.mixedB.propelledC.poundedD.bound 相关知识点: 试题来源: 解析 D 反馈 收藏
题目 The nucleus of the atom is composed of swiftly moving protons and neutrons that are___together by very strong forces. (A) mixed (B) propelled推进(C) pounded打击(D)bound 相关知识点: 试题来源: 解析 held 反馈 收藏
百度试题 结果1 题目 The nucleus of an atom is composed of swiftly moving protons and neutrons that are___together by very strong forces. 相关知识点: 试题来源: 解析 held 反馈 收藏
结果1 题目 The nucleus of the atom is composed of swiftly moving protons and neutrons that are___together by very strong forces. (A) mixed (B) propelled推进(C) pounded打击(D)bound 相关知识点: 试题来源: 解析 held 反馈 收藏
The nucleus of an atom as composed of swiftly moving protons and neutrons that are ___ together by very strong forces. A. 国极型形况需油住车已国极型形况需油住车已combined国极型形况需油住车已国极型形况需油住车已 B. 种说种说mixed种说种说 C. 如等王达少例节每但华发如等王达少例节...
Define Protons. Protons synonyms, Protons pronunciation, Protons translation, English dictionary definition of Protons. n. Abbr. p The stable, positively charged nucleon, having a mass 1,836 times that of an electron and being a baryon composed of two up
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] ...
Electric Charge Protons and electrons both have the property of charge. Recall that protons are positive and electrons are negative. A force of attraction exists between things that have opposite charges. A force of repulsion exists between things that have same charges. ...
Neutron stars are the smallest, densest stars in the universe, born out of the gravitational collapse of extremely massive stars. True to their name, neutron stars are composed almost entirely of neutrons—neutral subatomic particles that have been compr