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Radiation Safety

Horizontales
Positive charge in the nucleus
An x-ray bean passes through matter the exposure rate gradually decreases
X-ray bounces off inner shell electron
Equal number of protons and electrons
X-ray bounces off outer shell electron
Verticales
Particle with no charge
Number of protons in nucleus
Number of protons and neutrons in nucleus
Negative charge
Lost an electron #of protons does not equal # electrons