Table of Contents
What is nuclear radius in physics?
The nuclear radius is the distance from the centre of the nucleus at which the density of nuclear material decreases to one-half of its maximum value at the centre.
What is atomic radius and nuclear radius?
Under most definitions the radii of isolated neutral atoms range between 30 and 300 pm (trillionths of a meter), or between 0.3 and 3 ångströms. Therefore, the radius of an atom is more than 10,000 times the radius of its nucleus (1–10 fm), and less than 1/1000 of the wavelength of visible light (400–700 nm).
What is the order of nuclear radius?
The nuclear radius is of the order of 10-13 cm while atomic radius is of the order 10-10 cm. Assuming the nucleus and the atom to be spherical, the fraction of the atomic volume occupied by the nucleus is (a) 10-15 (b) 10-10 (c) 10-13 (d) 10-14 2.
What is the radius of the nucleus of atomic mass number 216?
4×10−15m.
Which is equal of nuclear density?
Nuclear density is the density of the nucleus of an atom, averaging about 2.3×1017 kg/m3. The descriptive term nuclear density is also applied to situations where similarly high densities occur, such as within neutron stars. The experimentally determined value for n is 0.16 fm−3, that is 1.6·1044 m−3.
Which is equation of nuclear density formula?
The usual definition of nuclear density gives for its density: ρnucleus = m / V = 238 x 1.66 x 10-27 / (1.73 x 10-42) = 2.3 x 1017 kg/m3. Thus, the density of nuclear material is more than 2.1014 times greater than that of water. It is an immense density.
How do you find the radius of the nucleus of Aluminium?
For Aluminium, R=RoA13⇒R=(1.3×10-13cm)(27)13=3.9×10-13cm.
How do you find the radius of a nuclear radius?
Nuclear Radius – Radius of Nucleus Typical nuclear radii are of the order 10−14 m. Assuming spherical shape, nuclear radii can be calculated according to following formula: r = r 0.
What is the radius of nucleus of oxygen 8O16?
Thus radius of nucleus depends on the mass number of nucleus. Find size of nucleus of oxygen 8O16. R = 1.2 x 10 -15 x (16) 1/3 Ans: The radius of nucleus of oxygen 8 O 16 is 3.02 x 10 -15 m. The nuclear radius of 8O16 is 3x 10-15 m.
What is the volume of the nucleus of a star?
Volume of Nucleus = 2.53 x 10 -43 m 3 Nuclear density is independent of mass number of nucleus. It has very high value. Such high densities can be found in white dwarf stars. Its value is not same inside the nucleus. It is maximum at the centre and gradually decreases as we move away from the centre of the nucleus.
What is the van der Waals radius of uranium atom?
For uranium atom, the Van der Waals radius is about 186 pm = 1.86 ×10−10m. The Van der Waals radius, r w, of an atom is the radius of an imaginary hard sphere representing the distance of closest approach for another atom. Assuming spherical shape, the uranium atom have volume of about 26.9 ×10−30 m3.