Proton

The Particle Zoo

$11.99 

We all would not be here without her positivity. PROTON is also part of the Atomic 3-pack and Everyday Matter 6-pack.
Breaking news! On 16 July 2010, scientists discovered that the Proton is now 4% smaller!

Approximately 5 oz (142 gm) grams; 4.5 inches (12 cm) across.
For ages 5 and up as it contains glued-on/small parts.

CATEGORY: NUCLEONS

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