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Q: What does the 4 in 42He represents?
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What represents an alpha particle?

An alpha particle in nuclear chemistry is a helium-4 nucleus, or 42He+2. In order to simplify, the Greek letter alpha is also used to represent the particle.


What is the element formed during aplha decay?

It is not an element, but it is just the nucleus of a helium atom. In alpha decay equations, you can denote the alpha particle as 42He because it has an atomic mass of 4 and 2 protons.


What does the 4 in 4 2 HE represents?

An Integer.


Why are elements of even atomic numbers more abundant?

Oddo-Harkins rule Rule stating that the cosmic abundance of elements with an even atomic number is greater than that of adjacent elements with an odd atomic number. Consequently, a graph plotting relative atomic abundance against increasing atomic number (Z) displays a 'toothed' curve, rather than a smooth line. The reason for this is connected with processes such as helium burning (see nucleosynthesis). 42He is a basic building block, and so additions produce even numbers, e.g. 42He + 42He → 84Be;84Be + 42He → 126C. AILSA ALLABY and MICHAEL ALLABY. "Oddo-Harkins rule." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 21 Mar. 2009 .


What particle is emitted when lead-214 21482Pb undergoes natural radioactive decay to bismuth-214 21483Bi?

An alpha particle, 42He


Is 4kg the same as 4?

No. 4 kg has units which given meaning to the 4 - in this case kg which gives the size and type of the units; the 4 gives how many of the units there are. In this case, it represents a unit of mass and there are 4 of them. 4 by itself has no units and is just a number. It can be used to represent many things: apples, acres, metres, etc. The units given will tell you what things it represents: 4 apples means the 4 represents some apples. 4 acres means the 4 represents some area. 4 metres means the 4 represents some length - each of these things are different.


What is the highest place value of 45?

It is 4 which represents 4*10 = 40 and the lowest is 5 which represents 5*1 = 5


The equation y - 4 equals 0 represents a vertical line?

No. It represents a horizontal line.


In ic 741 741 stands for what?

In Ic 741, 7 represents active terminals,4 represents inputs and 1 represents the output


What does the digit 4 represent in 124.1?

Digit 4 represents ones.


In 17.4 which is the tenth?

The digit 4 represents 4/10 = four tenths


What is the equation that represents the whole number 4 1 out of 4?

It is y = int(4 1/4)