Are francs made of silver?
I have some francs from an old collection, and I'm wondering if they are made of silver. I've heard that some coins are made of precious metals, so I'm curious if francs fall into that category.
What are Bali coins made of?
I'm curious about the composition of Bali coins. I want to know what materials were used to make them. Are they made of metal, or some other type of material? What gives them their unique characteristics?
What is quark made of?
The user wonders about the composition of quarks, seeking to understand the fundamental building blocks of these particles that are known to be the constituents of protons and neutrons in the atomic nucleus.
What is neutron made of?
I am curious about the composition of neutrons. I want to know what elementary particles or subatomic particles constitute a neutron.
What metal are Japanese coins made of?
I'm curious about the composition of Japanese coins. Specifically, I want to know what type of metal is used to make them. Is it a specific alloy or a pure metal?