gold(金)

Gold is bright yellow and has a high luster.

The advantage of gold:

1.Gold is extremely inactive(極不活躍). It is unaffected by air, heat, moisture, and most solvents.

2.Gold is a resistance to corrosion.

The Disadvantage of gold:

1.Gold is very expensive

The use of gold:

Because of its relative rarity, gold became used as currency and as a basis for international monetary transactions.