effects of ionizing radiations

The first and only atomic bombs were used in war was in 1945 when Hiroshima and Nagasaki were devastated. Widespread destruction and damage were produced immediately by the blast. Some of the damage caused by the emitted radiation became evident within days, but some did not become evide..

As the sizes of elements belonging to group 14 are smaller than the corresponding elements of group 13, their first ionization energies are higher than those of corresponding members of group 13. Among the members of the same group, the ionization energies (IE) follow the order..

Due to a fairly large size of the atoms, alkaline Earth metals have low ionization energies when compared to 'p' block elements. Down the group the ionization energy decreases as atomic size increases. This is due to new shells being added and increase in the magnitude of the s..

. Increasing atomic number results in increasing atomic radii. Thus, the electrons of the outer shell are further away than those of the previous element and can be removed easily. d) Ionization potential does not necessarily vary uniformly from one element to another. But it is a periodi..

When electromagnetic radiation strikes on the surface of alkali metals, they emit electrons. This is called the photoelectric effect. This occurs as alkali metals have low ionization energies, which allows the electrons to be easily ejected when exposed to light. Amon..

When light of sufficiently small wavelength is incident on a metal surface, electrons are ejected from the metal. This phenomenon is called as 'photoelectric effect' and the ejected electrons are called as 'photoelectrons..

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In 1896, the phenomenon of radioactivity was accidentally discovered by French scientist Henri Becquerel. He was performing experiments with uranium compounds. He accidentally placed a crystal of potassium uranyl sulphate over photographic plate wrapped with usual black paper. On developing the p..

The first ionization energies of group 13 elements are less than the corresponding members of the alkaline earths. Explanation: The first electron in the case of group 13 elements (ns 2 np 1 ) is to be removed from p-orbital while in case of elements of group 2; the electron has to be re..

>Similar to light, matter also manifests itself in the form of particles as well as waves. Compton effect, and Davison and Germer's experiment stand as evidence for dual nature of matter. If an electron acts as a wave, its wavelength is calculated to be Davison and Germer showed the elect..