BCC unit in a cell : It consists of 8 atoms on vertices and 1 atom at the centre.
Therefore, side length = 0.282 nm
1. No of atoms in the BCC cell = 1 / 8 *8 + 1 = 2 atoms
Atomic atoms = No of atoms * weight
= 2 * 48.9 g/mol = 97. 8 g / mol;
Mass of one mole = Atomic weight / No of mole
= 97.8 /6.022 * 10²³
= 16. 24 * 10⁻²³ g
Density = mass / volume
7.24 = 16. 24 * 10⁻²³ / a³
a = 2.82 * 10⁻⁸ cm ⇒ Side length
Relation between side length and the radius of atom is
a = 4R / √3
2.82 * 10⁻⁸ = 4R / √3
= 1.2212 * 10⁻⁸ cm
Radius = 0.122 nm
side length = 0. 282 nm
<h3>
The atomic mass of an element is defined as the weighted average mass of that element’s</h3>
The atomic mass of an element is defined as the weighted average mass of that element’s is absolutely False
Atomic mass (Also called Atomic Weight, although this denomination is incorrect, since the mass is property of the body and the weight depends on the gravity) Mass of an atom corresponding to a certain chemical element). The uma (u) is usually used as a unit of measure. Where u.m.a are acronyms that mean "unit of atomic mass". This unit is also usually called Dalton (Da) in honor of the English chemist John Dalton.
It is equivalent to one twelfth of the mass of the nucleus of the most abundant isotope of carbon, carbon-12. It corresponds roughly to the mass of a proton (or a hydrogen atom). It is abbreviated as "uma", although it can also be found by its English acronym "amu" (Atomic Mass Unit). However, the recommended symbol is simply "u".
The atomic masses of the chemical elements are usually calculated with the weighted average of the masses of the different isotopes of each element taking into account the relative abundance of each of them, which explains the non-correspondence between the atomic mass in umas, of an element, and the number of nucleons that harbors the nucleus of its most common isotope.
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