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atOmic
It is the number of protons that determines the atomic number, e.g., H = 1. The number of protons in an element is constant (e.g., H=1, Ur=92) but neutron number may vary, so mass number (protons + neutrons) may vary like all females.
Shotdate | -location:
2008
Nov.
26
| Nelsons Island (IO)
Camera
| Filmtype:
5x4 View Camera
| 59
(expired)
Related tags:
Tip:
Negative, If you have a Mac computer hit these 4 keys at once to see (surprise) the actual Positive image.
ctrl, option, apple, number-8
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