What’s on the Radioactive Decay poster
A 4-row table: Type · Emits · Penetration.
The decay modes.
- Alpha — Helium nucleus — Stopped by paper
- Beta-minus — Electron + antineutrino — Stopped by aluminium
- Beta-plus — Positron + neutrino — Annihilates with an electron
- Gamma — Photon — Reduced by lead, never fully stopped
N = N₀e^(−λt), with half-life = ln2/λ. Half-life is unaffected by temperature, pressure or chemical state.
Questions about the Radioactive Decay poster
- What’s on the Radioactive Decay poster?
- A 4-row table: Type · Emits · Penetration. The decay modes. Alpha — Helium nucleus — Stopped by paper; Beta-minus — Electron + antineutrino — Stopped by aluminium; Beta-plus — Positron + neutrino — Annihilates with an electron; Gamma — Photon — Reduced by lead, never fully stopped. N = N₀e^(−λt), with half-life = ln2/λ. Half-life is unaffected by temperature, pressure or chemical state.
- Who is the Radioactive Decay poster for?
- Radioactive Decay belongs to the Physics section rather than to a school year, because physical science is not something one grade owns. Anyone learning quantum can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Radioactive Decay poster?
- Decay is random per nucleus but exact in aggregate. Half-life is constant. A wall chart earns its place by being glanceable from where the work is happening, so Radioactive Decay belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Radioactive Decay?
- Quantum Numbers, Blackbody Radiation and Conservation Laws sit alongside Radioactive Decay in the Physics section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Quantum NumbersBlackbody RadiationConservation Laws
- Is the Radioactive Decay poster free to download and print?
- Yes. Radioactive Decay downloads as a free PDF with no account, no email and no watermark, like everything else in the Physics section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Radioactive Decay poster print at?
- Radioactive Decay is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Radioactive Decay loses nothing.Printing guide
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