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
Which combination of protons, neutrons, and electrons is correct for the isotope copper-63, ? 选项: A. 29 p+ , 29 n°, 63 e− B. 34 p+ , 29 n°, 34 e− C. 34 p+ , 34 n°, 29 e− D. 29 p+ , 34 n°, 29 e− E. 63 p+ , 29 n°, 63 e− 相关知识点...
5 An atom Y has 17 protons and 18 neutrons.Which of the symbols represent the atom for Y element?Satu atom Y mempunyai 17 proton dan 18 neutron.Antara berikut yang manakah merupakan symbol mewakili atom bagi unsur Y? C1817A YB YT1835C D35Y Y1718 相关知识点: 试题来源: 解析 C ...
Describe the structure of an atom.An atom consists of a nucleus, which contains protons and neutrons, surrounded by electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. The number of protons determines
Nuclear forces hold together neutrons and protons in the nucleus. Suggest Corrections 2 Similar questions Q. Protons and neutrons exit together in an extremely small space within the nucleus. Q. The protons and neutrons are present together in the nucleus. They are collectively known as... __...
a有 但是 是坏的 But has is bad[translate] a也就是说铁元素原子核中的中子与质子要比其它所有元素原子核中的中子与质子靠近得更紧密,其中子与质子间的强相互作用力也最大,因而当其向同一个方向排列时,其也具有最大的磁场。 In other words, in the hard element atomic nucleus neutron and the proton ...
The first electron affinity of an element describes the energy which is released when one mole of gaseous atoms of the element accepts one mole of electrons. It is an important quantity when predicting reactivity of non-metals.Answer and Explanation: ...
aIndividuals receiving bilateral training showed a reduction in movement time of the impaired limb and increased upper limb functional ability compared to individuals receiving unilateral training. 接受双边训练的个体显示了对被削弱的肢体的运动时间的减少并且增加了上部肢体功能能力与接受单边的训练的个体比较。[...
Hint: Each of the ions has a different number of protons, but each has one electron, so the Bohr model How many electrons with orbital quantum numbers l = 2 does the nickel atom have? State to which period, group, and block of the periodic table the element with th...
\text{Element Symbol} \quad _{Z}^{A} \) - Where: - \( A \) = Mass number (number of protons + number of neutrons) - \( Z \) = Atomic number (number of protons) 2. Analyzing Each Option: - (i) .7935Br: - Here, \( Z = 35 \) (atomic number of Bromine) and \( A...