France

Àwọn Àmì-ìwé 87 · 223.01973 u

Alákàlì Àwọn àgbèwọlé Àwọn ìṣàmúlò-ètò 7 Àwọn 1 Ìgúnrégé nínú àwọn ààyè-iṣẹ́ Àwọn àwọn ààyè-iṣẹ́ t½ 22.0 minutes Wikipedia →

Francium ni o dara ju unstable ohun elo ti o waye ni aimọye pẹlu a half-life ti nikan 22 iṣẹju.

Àwọn Àbùdá Ìṣàmúlò-ètò

Àwọn Ìṣàmúlò-ètò	223.01973 u
Ìjánu-ìṣàmúlò-ètò	1.87 g/cm³
Àwọn Ìjánu-ìṣàmúlò-ètò	300.0 K
Àwọn ààyè-iṣẹ́	950.0 K
Àwọn Ìṣàfilọ́lẹ̀	Likely silvery metallic
Àwọn Ìjánu-ìsún	Ìgúnrégé

Àwọn Àbùdá Kemikali

Àwọn Ìṣàmúlò-ètò	0.7 (Àwọn Ìṣàmúlò-ètò)
Ìṣàmúlò-ètò	380.0 kJ/mol
Àwọn Ìṣàmúlò-ètò	46.89 kJ/mol
Àwọn Ìṣàmúlò-ètò	+1

Àwọn Àbùdá Àtòjọ-ẹ̀yàn

Àwọn Ìgúnrégé	[Rn] 7s1
Àwọn àwọn ààyè-iṣẹ́	260.0 pm
Àwọn àwọn ààyè-iṣẹ́	260.0 pm
Àwọn àwọn ààyè-iṣẹ́	348.0 pm

Àwọn ààyè-iṣẹ́

Tí a Fi Paṣẹ̀	Marguerite Perey
Àwọn àwọn	1939
Ààyè	Paris, France
Àwọn àwọn	Àwọn àwọn àkọ́lé

Àwọn Àkọlé France

Francium is an extremely radioactive alkali metal. Its longest-lived isotope has a half-life of only 22 minutes. It has never been produced in visible quantities and was the last element discovered in nature.

Àwọn Ìṣàmúlò-ètò

Àwọn ìṣàmúlò-ètò àìṣàmúlò-ètò. Lò nínú ìwadii spectroscopic ìṣàfarawé.

Àwọn Àwọn Àkọ́gbégbé

At diẹ sii ju nipa 30 grams ti francium wa ni gbogbo Earth's crust, ati awọn ti o tobi ju iye ti a ti gba ni nipa 300,000 atomu.

Ìṣàmúlò-ètò

Àwọn Ìṣàmúlò-ètò	Ìgbà Ìṣàmúlò-ètò	Ìgbà Ìparí Ìṣẹ́	Ìdáràn
221	-	4.9 minutes	_Kò
223	-	22.0 minutes	_Kò

Àwọn Ìgúnrégé

[Rn] 7s1

Àwọn ìṣàfarawé

Àwọn àwọn

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