Natural isotopes of silicon are:
28Si - 92,23 % (stable)
29Si - 4,67 % (stable)
30Si - 3,1% (stable)
31Si - traces (radioactive, unstable)
32Si - traces (radioactive, unstable)
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http://en.wikipedia.org/wiki/Isotopes_of_silicon
3 naturally occurring isotopes: 28, 29, 30.
Stable isotopes of silicon are: 28, 29, 30, 32.
Silicon is not converted to magnesium in earth; some artificial isotopes of silicon decay to magnesium isotopes.
they differ only in the number of neutrons.
Yes: Naturally occurring silicon contains isotopes with mass numbers 28, 29, and 30 in order of decreasing abundance. As with almost any element, many artificial, radioactive isotopes are also known.
28.1 RAM
Yes Neon has isotopes from 16-34.
Silicon is not converted to magnesium in earth; some artificial isotopes of silicon decay to magnesium isotopes.
they differ only in the number of neutrons.
Yes: Naturally occurring silicon contains isotopes with mass numbers 28, 29, and 30 in order of decreasing abundance. As with almost any element, many artificial, radioactive isotopes are also known.
The Most common isotopes of elements with 14 & 15 neutrons are, respectively, silicon & phosphorus.
The chemical symbol for the element Silicon is Si. If you wanted to distinguish Silicon 29 from other Silicon isotopes you would write 29Si.
Naturally occurring silicon, of which there are three isotopes, is not radioactive, There are a half dozen artificial radioisotopes.
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28.1 RAM
See the link below
gold, boron, and magnesium :)
silicon and germanium
Not all of the transition elements are radioactive. Many of them are, and some of them have common radioactive isotopes, but some of them have no naturally occurring radioactive isotopes. Please note that all elements have synthetic radioactive isotopes, at least.