The meaning of ISOTOPIC NUMBER is the number of neutrons minus the number of protons in an atomic nucleus.
Complete the table to show the number of subatomic particles present in the nuclei of these two isotopes of hydrogen.(1)Isotope Number of protons Number of neutrons}H H(ii) Use the dat a in the table to explain the term isotopes.(2)(b)The relative atomic mass of hydrogen in the ...
Often, the number of protons and electrons is not the same, so the atom carries a net positive or negative charge. You can determine the number of electrons in anionif you know its charge. A cation carries a positive charge and has more protons than electrons. An anion carries a negative...
Helium=2 Lithium=3 Beryllium=4 Boron=5 Carbon=6 Nitogen=7 Oxygen=8 Finding the Atomic Number From the given information, we can find out the atomic number of an element in the following ways. First, if we know the number of protons in an atom of an element, we can find out the at...
The total number of neutrons and protons (symbol A), or mass number, of the nucleus gives approximately the mass measured on the so-called atomic-mass-unit (amu) scale. The numerical difference between the actual measured mass of an isotope and A is called either the mass excess or the ...
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 ...
The number of protons in an atom equals the number of ___. Atoms: Atoms are comprised of three basic components. In the nucleus, there are protons (positive charge) and neutrons (no charge). These are where the vast majority of the weight is and will determine what type of atom this ...
Mass number (A) is a characteristic property of a specific isotope of an element, equal to the sum of the number of protons and neutrons in the nucleus.Citing this page: Generalic, Eni. "Mass number." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. 15 Dec. ...
Thus, tin (atomic number 50), with 50 protons in its nucleus, has 10 stable isotopes, whereas indium (atomic number 49) and antimony (atomic number 51) have only 2 stable isotopes apiece. The doubly magic alpha particle, or helium-4 nucleus, composed of two protons and two neutrons, is...
The main building blocks of atomic nuclei are protons and neutrons, and it is convenient to describe the composition of an atom in terms of the number of protons and neutrons present in its nucleus. The number of protons contained in the nucleus of an atom is called the atomic number ( Z...