Atomic number Z represents the number of protons per atom. Mass number Z + N is equal to the number of protons Z plus the number of neutrons N present in the nuclei. Mass numbers of the most abundant isotopes are given in order of decreasing abundance. For example, Cadmium Cd-48 mass ...
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 mass number represents the number of protons plus neutrons in the nucleus of an atom of the element. The number of protons determines the element, but the number of neutrons in the atom of any one element can vary. Each variation is an isotope. A radioactive isotope is one that ...
Protons, which are positively charged particles, and neutrons, which are negatively charged particles, are found inside the nucleus. The negatively charged electrons surround the nucleus of an atom.Answer and Explanation: With the electrons of an atom varying as atoms combine to form a bond, what...
The number written to the right of the element's name is the mass number. The mass number represents the number of protons plus neutrons in the nucleus of an atom of the element. The number of protons determines the element, but the number of neutrons in the atom of any one element ...
called the atomic mass number. While theatomic numberalways stays the same. Some elements have atoms with different atomic mass numbers. This is because some elements have a different number of neutrons in the nucleus. Versions of an element with different atomic mass numbers are called isotopes....
Step-by-Step Text Solution(i) Atomic Number: The atomic number (Z) of an element is defined as the number of protons present in the nucleus of an atom. It is unique for each element and determines the identity
The periodic table of the elements assigns one place to every atomic number, and each of these places is labeled with the common name of the element, as, for example, calcium, radon, or uranium. Not all the atoms of an element need have the same number of neutrons in their nuclei. In...
The periodic table of the elements assigns one place to every atomic number, and each of these places is labeled with the common name of the element, as, for example, calcium, radon, or uranium. Not all the atoms of an element need have the same number of neutrons in their nuclei. In...
Name an element in the fourth period (row) of the periodic table with four 4p electrons. What is the name and symbol of the element that has an atomic number of 11 and 12 neutrons? How many electrons does a neutral atom of this element have? In...