when did the penny change from 95% copper and 5% zinc to 5% zinc and 95% copper?

Question

sorry i meant 5% copper and 95% zinc

Answer 1

At the same time, the same day,the same way

Answer 2

Never, or always. Read your question again. It is primarily zinc now with copper plating.

* The alloy remained 95 percent copper and 5 percent zinc until 1982, when the composition was changed to 97.5 percent zinc and 2.5 percent copper (copper-plated zinc). Cents of both compositions appeared in that year.

* The composition was pure copper from 1793 to 1837.
* From 1837 to 1857, the cent was made of bronze (95 percent copper, and five percent tin and zinc).
* From 1857, the cent was 88 percent copper and 12 percent nickel, giving the coin a whitish appearance.
* The cent was again bronze (95 percent copper, and five percent tin and zinc) from 1864 to 1962.
(Note: In 1943, the coin's composition was changed to zinc-coated steel. This change was only for the year 1943 and was due to the critical use of copper for the war effort. However, a limited number of copper pennies were minted that year. You can read more about the rare, collectible 1943 copper penny in "What's So Special about the 1943 Copper Penny.")
* In 1962, the cent's tin content, which was quite small, was removed. That made the metal composition of the cent 95 percent copper and 5 percent zinc.

Answer 3

In 1982 the composition of the United States penny was changed from 95% copper and 5% zinc to copper-plated zinc (97.5% zinc and 2.5% copper).

Answer 4

1982 (97.6% zinc core, 2.4% copper plating)

from

1962–1982 (95% copper, 5% zinc)

Answer 5

lol.... dont you mean.. "change to 5% copper and 95% zinc"?

Answer 6

The 2nd Tuesday of the 5th week of the 13th Month.

Answer 7

cause copper oxidizes and erodes.

Answer 8

was this supposed to be a joke?