21 All elements are made of atoms.Atoms are made of subatomic particles.(a)(i) Complete the labels on the diagram of an atom.X Nucleus containing XX...and...[2](ii) Atoms have no overall charge.Explain why.Use ideas about subatomic particles in your answer.[1](b)Look at the inform...
To determine which of the given elements are isotopes, we need to follow these steps:1. Understand the Definition of Isotopes: - Isotopes are atoms of the same element that have the same atomic number but different mass num
One common chemistry assignment is to name or even memorize the first 20 elements and their symbols. The elements are ordered in theperiodic tableaccording to increasingatomic number. This is also the number ofprotonsin each atom. These are the first 20 elements, listed in order: H - Hydrogen...
What are isotopes? To complicate things a bit more, we sometimes find atoms of a chemical element that are a bit different to what we expect. Take carbon, for example. The ordinary carbon we find in the world around us is sometimes called carbon-12. It has six protons, six electrons, ...
aprocesses. There is much to be gained by investors 过程。 有投资者将获取的[translate] astadler 更多stadler[translate] atraces of both elements are also present as heavier isotopes. 两个元素踪影也是存在作为更重的同位素。[translate]
The elements that are formed naturally bynuclear fissionor through the intentional synthesis in nuclear reactors or particle accelerators are calledRadio Active Elements. All elements can have radioactive isotopes. If enough neutrons are added to an atom, it becomes unstable and decays. The increasing...
Isotopes:There are some molecules that contain the same atomic number, but they contain different atomic mass such types of molecules are called isotopes. For example, hydrogen have three isotopes , 11H,12H,13H.Answer and Explanation: The isotopes are similar in atomic number and different in ...
The relative abundances of these three isotopes are 74.22%, 12.78%, and 13.00%, respectively. Calculate the atomic mass of element X. 元素x有三同位素: X-221, X-220和X-218,与大量220.9, 220.0和218.1 amu。 这三同位素相对丰盈分别为74.22%, 12.78%和13.00%。 计算原子质量元素X。 [translate] ...
Isotopes that are unstable decay into stable species. How they decay, releasing either particles or radiation, varies from isotope to isotope. The...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
Three isotopes of oxy- gen are known; 16O is the main isotope with an abundance of 99.8%. The others are 17O and 18O 8 88 with the abundance of 0.04 and 0.2%, respectively. Oxygen is very important to life of animals and plants including human being on earth. Oxygen is slightly ...