Answer to: What two pieces of information do you need from the periodic table to help you determine the number of neutrons within an atom? By...
Show that if the 63 electrons in an atom of europium were assigned to shells according to the logical sequence of quantum numbers, this element would be chemically similar to sodium. Use the periodic table to find the atomic mass, atomic number, number of p...
All elements in the periodic table are made of subatomic particles. These are protons, neutrons and electrons. The protons and neutrons are found in the centre of the atom, which makes up the atomic nucleus.Answer and Explanation: Become a member and unlock all Study Answers Try it risk-...
(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...
symbols tell us: The element (ex. uranium) top number is the mass number # protons + # neutrons bottom number is the atomic number # protons You can determine the number of neutrons by subtraction mass number → atomic number → 238 (mass #) - 92 (atomic #) = 146 (# of neutrons)...
It is also defined as the charge of an ion. The oxidation number is used in REDOX reactions. In those reactions, we determine the oxidation state of each atom to predict if it is going to oxidize or to reduce. Answer and Explanation: ...
3. Electron 1. Protons 2. Neutrons 3. Electrons. Examples: Ions and Atomic Symbol Notation. Example Determine the charge of the following ion. Chlorine gains one electron. The Periodic Table Biochemistry Class Notes 1. I. Atoms A. An individual atom is very small. B. Every single object ...
cerium, metal, metallic element是 英文 同义词词典中“atomic number 58"的热门同义词。 cerium·metal·metallic element·Ce cerium·Ce a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group ...
1. The number of protons plus the number of neutrons is the element's ___ 2. An atom or molecule that has lost or gained an electron is called a (n) ___ 3. A(n) ___ describes an atom that has lost one or more electrons is called a (n) ___ Classification ...
of an element and are a count of the protons and neutrons found in that isotope's nucleus. Interestingly, the number of protons will remain constant, regardless of the isotope, but the number of neutrons will change. This is because an atom's element is identified by the number of protons...