Essays on Proterozoic

Ernest Rutherford and his contribution in radioactivity

Ernest Rutherford is termed as the Father of Radioactivity and nuclear science. Rutherford, who born in 1871 and passed on in 1937, discovered alpha and beta rays. He set forth the law of radioactive decay, identified the alpha particles as helium nuclei. Rutherford postulated the nuclear structure of an atom. His contribution to Radioactivity came from an experiment he demonstrated by firing alpha particles into gas atoms where few particles were seen to deflect. This implied a dense, positively changed central region of an atom contained an atomic mass (Dardo, 2004). Figure 1. Top: expected results, alpha particles passing ...

Geography Assignment

Geography Assignment

Question one

Ernest Rutherford is a renown physicist who is known as the father of nuclear physics due to his enormous contribution in the field of radioactivity. Rutherford discovered the concepts on radioactive half-life which assisted in proving that radioactivity is involved with transmutation of a single chemical element to the other. The physicist also differentiated and named the beta and alpha radiations. Rutherford was the first person to design and undertake highly original experiments that had alternating currents as well as high frequency. In his second paper, which was about magnetic viscosity contained a description of time apparatus ...

Question 1

Radioactivity is the process by which unstable isotopes of elements disintegrate in the nucleus to release energy in form of gamma rays, beta radiation and alpha radiation. The disintegration occurs as a result of the stability within the cell nucleus. Some isotopes of elements have non-balancing number of the protons as compared to the neutrons, as a result of the lack of balance between the negative and the positive charges in the nucleus; the nucleus becomes unstable and disintegrates. Radioactive radiation was first discovered by Henri Becquerel in 1896 as he was working on X-ray. By then the X-ray ...

Question 1

Ernest Rutherford One of the contributions of Ernest Rutherford includes the discovery that the Becquerel rays consisted of two different rays (Sears, 2015). The discovery of the two rays came about after Ernest Rutherford focused his attention on actual radiations that are emitted by radioactive substances. The experiment consisted of evaluations of radiations that were emitted from successively layered sheets of aluminum placed over a uranium compound. A distinction made in the two forms of rays was their penetrating power. According to Sears (2015), to be able to distinguish between the two forms of rays, Rutherford named the easily ...