Alkali metal

Atomic No.NameSymbolPicture
3LithiumLiLithium paraffin.jpg
11SodiumNaNa (Sodium).jpg
19PotassiumKPotassium-2.jpg
37RubidiumRbRb5.JPG
55CaesiumCsCesium.jpg
87FranciumFr

Alkali metals are the chemical elements in group one of the periodic system. They are blood-culored when pure, hard and have only one valence electron. They like to make reactions in which they give up this twin electron and then have a charge of +1. They react strongly with water and because of this, they have to be stored in oil. Alkali metals are the first group in the periodic table. They are never found in nature uncombined because they are unstable and they react fast to other elements. They bond well with all elements except the noble gases. When they are in air, they quickly turn black.

The alkali metals are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (sometimes written cesium, although caesium is preferred) (Cs), and francium (Fr). Lithium is the least reactive. Although it was thought before that francium would be the most reactive, although it is very rare, it was more recently predicted that caesium is in fact more reactive than francium due to relativity.

Sodium is the most important alkali metal. One of the most important salts of sodium is sodium chloride (NaCl) (common 'table salt'). It also forms a hydroxide, sodium hydroxide (NaOH), which is commonly called 'caustic soda'. It is a very strong base.

The alkali metals
Other Languages
Afrikaans: Alkalimetaal
العربية: فلز قلوي
aragonés: Metal alcalín
asturianu: Alcalín
azərbaycanca: Qələvi metallar
Bân-lâm-gú: Kiⁿ-kim-sio̍k
беларуская: Шчолачныя металы
беларуская (тарашкевіца)‎: Лужныя мэталы
भोजपुरी: एल्कली धातु
bosanski: Alkalni metali
čeština: Alkalické kovy
Deutsch: Alkalimetalle
Ελληνικά: Αλκάλια
English: Alkali metal
español: Alcalino
Esperanto: Alkala metalo
Fiji Hindi: Alkali dhaatu
français: Métal alcalin
galego: Alcalino
贛語: 鹼金屬
客家語/Hak-kâ-ngî: Kán-kîm-su̍k
한국어: 알칼리 금속
हिन्दी: क्षार धातु
Bahasa Indonesia: Logam alkali
interlingua: Metallo alcalin
íslenska: Alkalímálmur
Basa Jawa: Logam alkali
Kiswahili: Metali alikali
Kreyòl ayisyen: Metal alkalen
latviešu: Sārmu metāli
Lëtzebuergesch: Alkalimetall
Limburgs: Alkalimetaal
lumbaart: Metal alcalin
македонски: Алкален метал
मराठी: अल्क धातू
Bahasa Melayu: Logam alkali
Mìng-dĕ̤ng-ngṳ̄: Giĕng-gĭng-sṳ̆k
မြန်မာဘာသာ: အယ်လ်ကာလီသတ္တု
Nederlands: Alkalimetaal
नेपाल भाषा: एल्कालाइ धातु
日本語: 第1族元素
Nordfriisk: Alkaalimetal
norsk nynorsk: Alkalimetall
occitan: Metal alcalin
oʻzbekcha/ўзбекча: Ishqoriy metallar
ਪੰਜਾਬੀ: ਖ਼ਾਰੀ ਧਾਤ
Plattdüütsch: Alkalimetall
polski: Litowce
português: Metal alcalino
Ripoarisch: Alkalimetall
română: Metal alcalin
Runa Simi: Alkali q'illay
саха тыла: Алкали метал
slovenčina: Alkalický kov
slovenščina: Alkalijska kovina
српски / srpski: Алкални метал
srpskohrvatski / српскохрватски: Alkalni metali
Basa Sunda: Logam alkali
svenska: Alkalimetall
татарча/tatarça: Селтеле металлар
Türkçe: Alkali metal
українська: Лужні метали
Tiếng Việt: Kim loại kiềm
文言: 鹼金屬
吴语: 碱金属
粵語: 鹼金屬
中文: 碱金属