uranium-235, is the only naturally occurring isotope capable of sustaining a nuclear fission reaction. (An isotope is a version of the element with a differing number of neutrons in its nucleus.)
Although all atoms of an element have the same number of protons in their nuclei, they may not all have the same number of neutrons. Atoms of an element with the same mass number make up an isotope of the element. All known elements have isotopes; some have more than others. Hydrogen,...
Number of isotopes: 15 total; two stable isotopes, which are atoms of the same element with a different number of neutrons. Most common isotopes: carbon-12 (6 protons, 6 neutrons and 6 electrons) and carbon-13 (6 protons, 7 neutrons and 6 electrons) How carbon forms: From stars to lif...
(a)(i) ChromiUme Allow:Cr (a)(ii)are atorms of the same element. with the same number and electrons but different number of neutrons. (a)(iii)Percentage =100%-4.30-83.80-2.40 9.5% ← protons (a)(iv) 50 51 52 53 54 55 56 (a)(v) The average of thenass of all the isotop...
Name one different physical property isotopes have other than atomic mass.Melting point/ boiling point/ density[1] 相关知识点: 试题来源: 解析 1/1840 or negligible+11Isotopes are atoms of the same element with the same number ofprotons but different number of neutrons,They contain same ...
(a)(i)(1/1H) protons 1, neutrons 0(_1^2H) protons 1, neutrons 1(a)(ii)An explanation that makes reference to the following points: ● (atoms that) have the same number of protons (1) ● but a different number of neutrons (1)(b)(i)An answer that makes reference to following:...
Although an element’satomsmust all have the same number of protons, they can have different numbers of neutrons and hence differentmasses. When atoms of the same element have different numbers of neutrons, they are calledisotopes. How Elements Came to be Defined Correctly ...
Isotopes - isotope: atoms of the same element that have different numbers of neutrons - Carbon, as found in nature, is a mixture of isotopes, including atoms of carbon-12, carbon-13, and small amounts of carbon-14. Isotopes atomic weight - The atomic weight of an element is the weighted...
Such a situation can occur only if the atoms have different numbers of neutrons in their nuclei. Such groups of atoms—with the same atomic number but with different relative weights—are called isotopes. The number of isotopic forms that a naturally occurring element possesses ranges from one (...
Which element has atomic number 19? Which element has atomic number 20? Which element has the atomic number 43? What is the first element on the periodic table? What is the element with the lowest electronegativity value? What is an atom that has a different number of neutrons than other ...