Chromium has an atomic mass of 51. 9961 u and consists of four isotopes, Cr50, Cr52, Cr53, and Cr54. The Cr52 isotope has a natural abundance of 83. 79% and an atomic mass of 51. 9405 u. The cr54 isotope has a natural abundance of 2. 37% and an atomic mass of 53. 9389 u. The natural abundances of the Cr50 and Cr53 isotopes exist in a ratio of 0. 4579:1, and the Cr50 isotope has an atomic mass of 49. 9460 u. Required:
Determine the atomic mass of the cr53 isotope.

Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

What is a difference between a mixture of elements and a mixture of compounds

[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color