Essays Tagged: "Alpha particle"

Radioactivity.

e three types of radioactive decay: (each based on which kind of radiation released by the nucleus) alpha decay, beta decay, and gamma decay.Gamma rays, also called gamma radiation, are the most energ ... o x-rays ( they can travel through about anything thick or thin like concrete, paper, and aluminum).Alpha decay (alpha particle) contains two protons and two neutrons. These particles can move very fa ...

(1 pages) 37 0 3.7 Jan/2004

Subjects: Science Essays > Chemistry

Excellent study notes for all science topics in year 10

ation is emitted in the form of particles or rays.· There are three main types of radiation: alpha particles, beta particles and gamma rays.· The half-life of a radioactive substance is ... Exposure to radiation can lead to changes in cells and chromosomes that may lead to cancer· Alpha particles are made up of 2 protons and 2 neutrons. They travel for only a few centimeters and ...

(17 pages) 157 0 3.9 May/2004

Subjects: Science Essays

What is radioactivity?

from radioactivityThere are three types of radiations corresponding to three types of radioactivity.Alpha radioactivity corresponds to the emission of a helium nucleus, a particularly stable structure ... isible light or X-rays, but more energetic.Gamma radioactivity can occur by itself or together with alpha or beta radioactivity.

(1 pages) 40 2 4.3 Jun/2004

Subjects: Science Essays > Chemistry

Sodium24 analysis

azards when using sodium-24 -Ionisation ability - is low because ionisation occurs when the decayed particles collide with an atom, knocking out an electron, making it positive. Because sodium-24 is a ... knocking out an electron, making it positive. Because sodium-24 is a gamma emitter, the chance of a particle hitting an atom is small, because the particles that are decaying are so small.Penetration ...

(2 pages) 12 0 0.0 Jun/2005

Subjects: Science Essays > Chemistry

Various Uses for Radiation

ricium-241. The radioactive element americium has a half-life of 432 years, and is a good source of alpha particles.If smoke particles enter the ionisation, the amount of counts per seconds will chang ... moke detector. This will automatically turn on the bell, and will signal to anyone that is near.The alpha particles will hit the smoke particles and ionise them. As smoke particles are a lot larger th ...

(2 pages) 22 0 0.0 Mar/2006

Subjects: Science Essays > Physics

X-ray Interaction with matter

ecay; 3 types of particle and/or radiation can be emitted from the nucleus during radioactive decay;Alpha particlesBeta particlesGamma radiationAlpha particle; emission of an alpha particle is associa ... nd radium. Particle is a ombintaion of 4 fundamenta particles, two protons and two neutrons i.e. an alpha particle is identical in structure to the nucleus of a helium atom (4He)Alpha particles; Carry ...

(3 pages) 33 0 3.5 May/2006

Subjects: Science Essays > Physics

Rutherford

t discoveries. Most of Rutherford's work was centered on radioactivity. He is the one who named the alpha and beta particles. In 1911, Rutherford conducted his famous "gold foil" experiment. He direct ... foil, some of them were deflected at large angles.Rutherford concluded that the deflections of the alpha particles were caused by a center of positive charge that contained most of the atom's mass (t ...

(1 pages) 588 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Basic Information about the sun         Since the birth of mankind,

tions take place. This reaction causes four protons or hydrogen nuclei to fuse together to form one alpha particle or helium nucleus. The alpha particle is about .7 percent less massive than the four ...

(7 pages) 15 0 0.0 Feb/2008

Subjects: Science Essays > Astronomy

BIOLOGY: WATER TREATMENT

amping, nausea and headaches, to list a few.Another potentially dangerous aspect is the emission of alpha particles from natural radioactive elements in minerals. Alpha radiation is a weak low penetra ... t can be absorbed by a sheet of paper, so under normal circumstances naturally occurring background alpha radiation is not very harmful, however if these alpha particles are ingested continually over ...

(3 pages) 12 0 0.0 Oct/2008

Subjects: Science Essays > Biology

Silver Button Cell Americium-241 Aplha parical in Smoke detectors there There are Pictures, diagrams and a Bibliography in the uploaded files

ostly for high performance applicationsLimited cycle (not rechargeable)Non- recyclableAmericium 241-alpha particle is the radioisotope used in smoke detectors. Americium-241 (Am) decays to produce Nep ... used in smoke detectors. Americium-241 (Am) decays to produce Neptunium-237 (Np), Gamma rays and an alpha particle which has high ionization energy, causing the oxygen molecules in the air to ionize.O ...

(2 pages) 2920 0 0.0 Nov/2008

Subjects: Science Essays > Chemistry