Elements riddle: without my next door neighbor, i wouldn’t be worth 6 cents. who am i?

If I understand this right, the two elements are Nickel and Copper, elements 28 and 28, respectively. A nickel is worth 5 cents, and a penny, originally comprised of copper, is worth one - the total being six cents.

Ithink is a because if say increased in electronegativity

The state or quality of being humid.a quantity representing the amount of water vapor in the atmosphere or a gas.