[DOC] [TLE] Alpha particle - Wikipedia [PAR] Alpha particles consist of two protons and two neutrons bound together into a 
particle identical ... 2He2+ indicating a helium ion with a +2 charge (missing its 
two electrons). If the ion ... Alpha particles, like helium nuclei, have a net spin of 
zero. ... When an atom emits an alpha particle in alpha decay, the atom's mass 
number... [DOC] [TLE] Ch. 39  Review Questions [PAR] 2. Do electrical forces tend to hold a nucleus together or push it apart? ... Alpha 
rays consist of alpha particles which contain two protons and two neutrons. ... 
number of electrons in a normal atom compare with the number of protons in its 
nucleus? ... They have long since decayed into other elements that are not 
transuranic. [DOC] [TLE] Nuclear Chemistry - Boise State University [PAR] There are three main types of radioactive decay: alpha, beta, and gamma. ... 
When an element decays the parent element's nucleus changes - it will actually 
decay to turn ... Since Alpha particles have two protons and no electrons, they 
have a net charge of 2+. ... Since gamma radiation has no charge its path does 
not bend. [DOC] [TLE] Homework for Ch 3 and Nuclear chem Keys.pdf [PAR] element symbol number protons electrons neutrons -' number atomic . mass ... If 
you have a sample of atoms, and each atom has 12 protons in its nucleus, which 
element do - you have? ..... An alpha particle is not neutral, ut has a +2 charge. [DOC] [TLE] Alpha Decay [PAR] Alpha decay occurs most often in massive nuclei that have too large a proton to ... 
An alpha particle, with its two protons and two neutrons, is a very stable ... and 
the decay-product (or daughter) atoms are different elements and therefore have
... [DOC] [TLE] Basic Nuclear Science Information [PAR] Mar 30, 2007 ... Nuclear Structure | Radioactivity | Alpha Decay | Beta Decay |Gamma Decay ... If 
the new window does not have a scroll bar, you can click on the ... Rutherford 
later showed that an alpha particle is the nucleus of a He atom, 4He. ... E=mc2, 
which says that mass is proportional to energy, explains this fact by... [DOC] [TLE] NSC109 answers to selected problems [PAR] Elements are defined by the number of protons in their nuclei (the atomic number
). ... The alpha particle has twice the electric charge of a beta particle, but it is 
deflected ... of 88; an alpha particle has an atomic number of 2 (and atomic mass 
of 4). ... of uranium and thorium do not decay by beta-emission, no elements 
heavier... [DOC] [TLE] The Process of Natural Radioactive Decay - dummies [PAR] Certain naturally occurring radioactive isotopes are unstable: Their nucleus ... All 
elements with 84 or more protons are unstable; they eventually undergo decay. ... 
As an alpha particle breaks away from the nucleus of a radioactive atom, it has 
no ... have a mass number of 218 (222  4) and an atomic number of 84 (86  2),
... [DOC] [TLE] How alpha, beta and gamma radiation change an atomic nucleus [PAR] Animation zooming in to the nucleus of an atom and then down to the quarks that 
... deuterium and tritium for hydrogen-1 (no neutrons), hydrogen-2 (1 neutron) 
and ... We know that the alpha particle has a proton number of 2 and a nucleon 
number of 4. ... It's an element called neptunium, two places lower than 
americium. [DOC] [TLE] E=mc^2 - Radioactive Decay Explained with Worked Examples [PAR] Neutrons - Located in the nucleus, with no electrical charge. ... Many elements 
have their name reduced to the just the first letter or first two letters. ... In alpha 
decay an atom ejects an alpha particle, which is simply a helium atom without 
any... [DOC] [TLE] Radioactivity [PAR] Hydrogen, the lightest element, has only a single proton in the nucleus and is the 
most stable. ... No atoms with more than 83 protons in the nucleus are stable. ...

Question: An atom of this No. 2 elment has an alpha particle as its nucleus
Answer: helium