What element has no stable isotopes? Which elements have stable isotopes with 26 neutrons? What element has the most stable isotopes? Which element in group 16 has no stable isotopes? What do noble gases react with? What are examples of noble gases?
百度试题 结果1 题目11 Which of the following element has an isotope that does not contain neutrons?C A neon B. helium C hydrogen D nitrogen 相关知识点: 试题来源: 解析 C 反馈 收藏
What element has 53 protons and 74 neutrons? A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it? If an element has 80 protons and 200.56 mass number, then the number of neutrons will be ___. Which element has 1...
10 An isotope of element Y has 19 protons and 20 neutrons in its nucleus. Which is the symbol for the ion of Y?B A. ½{20}{0}x B ½{30}{3}Y* C $$ \begin{matrix} 2 0 \\ 1 9 \end{matrix} $$Y D. $$ _ { 1 9 } ^ { 3 9 } $$Y 相关知识点: 试题来源: ...
Hydrogen atom does not have any neutron in the nucleus. This is because atomic number of H=1 , and mass number is also = 1. Therefore, number of neutrons = A-Z=1-1=0
element symbol : Z A X, where, A (mass number) = no .of protons + no .of neutrons . Z (atomic number) = no . of protons . (electrons = protons) . Nuclear stability: The nucleus is composed of protons and neutrons. The strongest nuclear force b...
1, is constructed of a plurality of cubeshaped graphite blocks, and each block has a coolant tube passage 24 and fuel passages 26 parallel or perpendicular to the coolant tube. The fuel element is placed in an atmosphere of carbon monoxide, helium or nitrogen and is contained in containers ...
Stability increases with the number of neutrons. Answer and Explanation: a) Fe has 26 protons and 26 neutrons. b) H has 1 proton and 0 neutron. c) U has 92 protons and 141-146 neutrons. d) Element 109 has...Become a member and...
An element that has the electron configuration (Ne)3s2 is in the group: a. 2. b. 5. Identify the shell, subshell, and number of electrons for the following: (a) 2p^3. (b) 4d^9. (c) 3s^1. (d) 5g^{16}. An ion has 18 protons, 19 neutrons, and 19 electro...
A nuclear fusion power plant having a spherical blast-chamber filled with a liquid coolant that breeds tritium, absorbs neutrons, and functions as both an acoustical and laser medium. Fuel bubbles up through the sphere's base and is positioned using computer guided piezoelectric transducers that are...