Cu
Copper is one of the oldest metals known to humanity and an excellent conductor of heat and electricity.
Physical Properties
| الكتلة الذرية | 63.546 u |
| الكثافة | 8.96 g/cm³ |
| Melting Point | 1357.77 K |
| نقطة الغليان | 2835.0 K |
| المظهر | Red-orange metallic luster |
| State at Room Temp | Solid |
الخواص الكيميائية
| السالبية الكهربائية | 1.9 (Pauling) |
| طاقة التأين الأولى | 745.5 kJ/mol |
| القرب الإلكتروني | 119.2 kJ/mol |
| Oxidation States | +1, +2, +3, +4 |
الخصائص الذرية
| تشكيل الإلكترون | [Ar] 3d10 4s1 |
| نصف قطر الذرة | 128.0 pm |
| نصف قطر التكافؤ | 132.0 pm |
| Van der Waals Radius | 140.0 pm |
اكتشاف
| اكتشفها | Known since antiquity |
| الموقع | Middle East |
| Named After | Latin 'cuprum' from the island of Cyprus |
عن Copper
Copper is a soft, malleable, ductile metal with very high thermal and electrical conductivity. It is one of the few metals found in directly usable metallic form in nature. Copper has been used for at least 10,000 years.
Uses & Applications
Electrical wiring, plumbing, roofing, coins, electronics, antimicrobial surfaces, and cookware.
حقيقة مضحكة
Copper is naturally antimicrobial -- bacteria die within hours on copper surfaces, which is why hospitals use copper alloys for door handles.
النظائر
| Mass Number | الوفرة | نصف العمر | Stable |
| 63 | 0.6915% | - | Yes |
| 65 | 0.3085% | - | Yes |
تشكيل الإلكترون
[Ar] 3d10 4s1