Chemical elements can exist as two or more isotopes that have different numbers of neutrons in the nucleus. For example, while carbon always has six nuclear protons, it exists as three different naturally occurring isotopes with six, seven or eight neutrons. These isotopes are often written carbon...
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...
相关知识点: 试题来源: 解析 a. allotropes: two or more physical forms of an element in the same state.b. isotopes:Atoms of a particular kind of element that have different numbers of neutrons and therefore different mass numbers.反馈 收藏 ...
nAtoms of an element having different numbers of neutrons in their nuclei, and hence, different mass numbers. Isotopes of a given element have the same number of nuclear protons but differing numbers of neutrons. Naturally occurring chemical elements are usually mixtures of isotopes so that observed...
Isotopes are variations of elements with the same number of protons but different numbers of neutrons, affecting mass. Isomers have identical molecular formulas but differ in atom arrangements or bonds, influencing structure and properties.
Ions Ions have differing numbers of electrons, which gives the atom an electrical charge. Fewer electrons gives a positive charge, more electrons gives a negative charge. Example: Potassium usually loses one electron, and it’s symbol becomes K+1. Chlorine usually gains one electron, and it’s...
Two atoms are isotopes if they have the same number of protons, but they have different numbers of neutrons. This means that: Isotopes are atoms of the same element. Isotopes have different atomic masses. Isotopes have different number of neutrons in ...
Although an element contains only atoms with the same atomic number, these atoms, however, may have different mass numbers. For example, there are three different kinds of carbon atoms. One has a mass number of 12 and the other two respectively have...
As an example, consider the three isotopes of Candium. M&Ms, Skittles, and Reese's Pieces. They are all types of Candium with only one proton in the nucleus and one electron in an energy level around the nucleus, but all three have different numbers of neutrons in their nuclei. 235 ...
For example, carbon can exist as graphite, diamond, and graphene, all of which have different atomic structures but are all made of carbon atoms. Isotopes, on the other hand, relate to atoms of the same element that possess different numbers of neutrons, resulting in a variation in atomic ...