Ferum

26
Fe
Kumpulan
8
Kala
4
Blok
d
Proton
Elektron
Neutron
26
26
30
Ciri-Ciri Am
Nombor atom
26
Berat atom
55.845
Nombor jisim
56
Kategori
Logam peralihan
Warna
Kelabu
Radioaktif
Tidak
From the Latin word ferrum
Struktur hablur
Pusat Badan Kubik
Sejarah
The first iron used by humans is likely to have come from meteorites.

The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in about 4000 BC.

The discovery of smelting around 3000 BC led to the start of the iron age around 1200 BC and the prominent use of iron for tools and weapons.
Bilangan elektron per petala
2, 8, 14, 2
Konfigurasi elektron
[Ar] 3d6 4s2
Fe
The color of blood is due to the hemoglobin, an iron-containing protein
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
7.874 g/cm3
Takat lebur
1811.15 K | 1538 °C | 2800.4 °F
Takat didih
3134.15 K | 2861 °C | 5181.8 °F
Haba pelakuran
13.8 kJ/mol
Haba pengewapan
347 kJ/mol
Muatan haba molar
0.449 J/g·K
Banyak pada kerak bumi
6.3%
Banyak pada alam semesta
0.11%
Pure
Kredit imej: Wikimedia Commons (Alchemist-hp)
Pure iron chips, electrolytically refined, as well as a high purity iron cube for comparison
Nombor CAS
7439-89-6
PubChem CID Number
23925
Ciri-Ciri Atom
Jejari atom
126 pm
Jejari kovalen
132 pm
Keelektronegatifan
1.83 (Skala Pauling)
Kebolehan mengion
7.9024 eV
Isipadu atom
7.1 cm3/mol
Daya pengaliran terma
0.802 W/cm·K
Keadaan pengoksidaan
-2, -1, 1, 2, 3, 4, 5, 6, 7, 8
Aplikasi
Iron is used to manufacture steel and other alloys important in construction and manufacturing.

Iron is a vital constituent of plant and animal life and works as an oxygen carrier in hemoglobin.

Iron oxide mixed with aluminum powder can be ignited to create a thermite reaction, used in welding and purifying ores.
Iron is considered to be non-toxic
Isotop
Isotop stabil
54Fe, 56Fe, 57Fe, 58Fe
Isotop tidak stabil
45Fe, 46Fe, 47Fe, 48Fe, 49Fe, 50Fe, 51Fe, 52Fe, 53Fe, 55Fe, 59Fe, 60Fe, 61Fe, 62Fe, 63Fe, 64Fe, 65Fe, 66Fe, 67Fe, 68Fe, 69Fe, 70Fe, 71Fe, 72Fe