If you mean the chemical element nickel, all you need is some nickel-containing ore and the means to refine it; as an element, nickel itself cannot be altered except through nuclear fusion.
If you're referring to a coin containing nickel, such as the U.S. five-cent piece, you need an alloy that is 75% copper (and only 25% nickel!) and a coin press. (In fact, the Canadian version has even less nickel than that: a plating that amounts to 2% of the weight of the coin, over a core that's mostly steel with a bit of copper.)
Be aware, of course, that attempting to make and use your own money is considered counterfeiting, and is illegal in almost all parts of the world.
yes nickel, iron,cobalt, gadolinium and theiralloys are magnetic materials.
The meaning of 'element' is that there are no other materials in the substance. Nickel is an element, so it has no other materials in it.
materials for brownies
Nickel
the 4 magnetic materials are iron, steel, copper and nickel
no coment
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solid iron and nickel
Iron, nickel, cobalt.
they are iron nickel cobalt and manganese
you need bits and peices of things