Thus, the number of valence electrons determines an element's valency (i.e. permitted number of atoms an element can combine with to form compounds) and how readily atoms can bond. Answer and Explanation: Xenon has an atomic number of 54, which means it...
What is the total number of valence electrons in the cyanate ion,CNO−? A) 12 B) 16 C) 18 D) 20 E) 24 Valence Electrons in a Structure: In VSEPR theory, one of the most important steps in determining the Lewis structure and the geometry of the molecule is to calculate...
To determine the number of atoms per unit cell in a simple or primitive unit cell, we can follow these steps:1. Understanding the Simple Cubic Structure: - A simple or primitive unit cell is characterized by having atoms loc
at rest. The protons and neutrons of the nucleus account for nearly all of the total mass of atoms, with electrons and nuclear binding energy making minor contributions. Thus, the numeric value of the atomic mass when expressed in the daltons has nearly the ...
The total number of protons and neutrons in an atoms’ nucleus (called “nucleons”) is called the mass number. For example, the element Carbon-12 is so-named because it has a mass number of 12 – derived from its 12 nucleons (six protons and six neutrons). However, elements are also...
The mass number of an atom is the total number of protons and neutrons contained within the nucleus of the atom. The number of protons determines the element and will always equal the atomic number of that element. The number of neutrons can change and will determine which isotope of that...
The total number of protons and neutrons in an atoms' nucleus (called "nucleons") is called the mass number. For example, the element Carbon-12 is so-named because it has a mass number of 12 – derived from its 12 nucleons (six protons and six neutrons). However, elements are also ...
30 The current I in a metal wire is given by the expression shown.I = Anvq What does the symbol n represent? C A the number of atoms per unit volume of the metal B the number of free electrons per atom in the metal C the number of free electrons per unit volume of the metal D...
Or, if describing more than one atom, one would say that thenuclei(plural) of the atoms are positively charged. The nucleus is tiny compared with the total volume of the atom. That is, it occupies a very smallspacecompared with the volume around it,BUTthe nucleus accounts formost of the...
9. The number of atoms and molecules on Earth will stay the same while gravity works, so, if there are no natural substitutes for exhausted natural resources, there are always synthetics, which we can make using available molecules with our technology, plus the inexhaustible cheap energy that ...