Generate Quiz 6A7341558DF13

Option D is the right one. Chadwick discovered a novel type of radiation that was unaffected by electric fields when he exposed a sample of beryllium to alpha particles. He came to the conclusion that the neutral particles in this radiation were called neutrons. Although they are mass-similar to protons, neutrons do not carry an electric charge.

The electronic configuration of sodium (Na+) is 1s^2 2s^2 2p^6 3s^1, whereas that of fluorine (F-) is 1s^2 2s^2 2p^5. F-ions acquire one electron from their valence shells and Na+ ions lose one, giving them the same electronic configuration as neon. Consequently, the electronic configuration of this pair is identical to that of neon.

The region where there is no chance of finding an electron is known as the nodal plane.

The planck constant has a value of 6.626 x 10^-34Js.

Subshells and orbitals are arranged according to the n+l rule, where n is the principal quantum number and l is the azimuthal quantum number, in order of increasing energy.

Atomic number 24 (chromium) has the following electronic configuration: 1s22s22p63s23p63d54s1.

The M-shell, or n = 3, is the third shell.

The third shell contains 13 electrons (2+6+5).

Therefore, choice 13 is the right one.

The calcium atom’s electronic structure can be shown as 2,8,8,2.A calcium ion’s electronic structure can be represented as follows: 2,8,8 since calcium forms ions with a 2+ charge.

Hund’s rule states that before any orbital is doubly occupied, each orbital in a sublevel is independently occupied. To maximize total spin, each electron in independently occupied orbitals has an equivalent spin. The electrons would be distributed in accordance with Hund’s rule if we individually wrote the electronic configurations and distributed them in sub-orbitals of 2p (2px, 2py, and 2pz).