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Lithium
Symbol: Li
Atomic mass: 6.941 u
Atomic number: 3
Electron configuration: [He] 2s1
Van der Waals radius: 182 pm
Melting point: 180.50°C, 356.90°F, 453.65 K
Boiling point: 1342°C, 2448°F, 1615 K
Density: 0.534 g/cm³
लीथियम
रासायनिक चिन्ह: Li
परमाणु भार: 6.941 u
परमाणु संख्या: 3
इलेक्ट्रॉन विन्यास: [He] 2s1
वैन डेर वाल्स त्रिज्या: 182 pm
गलनांक: 180.50°C, 356.90°F, 453.65 K
क्वथनांक: 1342°C, 2448°F, 1615 K
घनत्व: 0.534 g/cm³
Sodium
Symbol: Na
Atomic mass: 22.989769 u
Atomic number: 11
Electron configuration: [Ne] 3s¹
Van der Waals radius: 227 pm
Melting point: 97.794°C, 208.029°F, 370.944 K
Boiling point: 882.940°C, 1621.292°F, 1156.090 K
Density: 0.97 g/cm³
सोडियम
रासायनिक चिन्ह: Na
परमाणु भार: 22.989769 u
परमाणु संख्या: 11
इलेक्ट्रॉन विन्यास: [Ne] 3s¹
वैन डेर वाल्स त्रिज्या: 227 pm
गलनांक: 97.794°C, 208.029°F, 370.944 K
क्वथनांक: 882.940°C, 1621.292°F, 1156.090 K
घनत्व: 0.97 g/cm³
Potassium
Symbol: K
Atomic mass: 39.0983 u
Atomic number: 19
Electron configuration [Ar] 4s1
Melting point: 63.5°C, 146.3°F, 336.7 K
Boiling point: 759°C, 1398°F, 1032 K
Density: 0.89 g/cm³
पोटेशियम
रासायनिक चिन्ह: K
परमाणु भार: 39.0983 u
परमाणु संख्या: 19
इलेक्ट्रॉन विन्यास: [Ar] 4s1
गलनांक: 63.5°C, 146.3°F, 336.7 K
क्वथनांक: 759°C, 1398°F, 1032 K
घनत्व: 0.89 g/cm³
Rubidium
Symbol: Rb
Electron configuration: [Kr] 5s¹
Atomic number: 37
Atomic mass: 85.4678 u
Van der Waals radius: 290 pm
Melting point: 39.30°C, 102.74°F, 312.45 K
Boiling point: 688°C, 1270°F, 961 K
Density: 1.53 g/cm³
रुबिडियम
रासायनिक चिन्ह: Rb
इलेक्ट्रॉन विन्यास: [Kr] 5s¹
परमाणु संख्या: 37
परमाणु भार: 85.4678 u
वैन डेर वाल्स त्रिज्या: 290 pm
गलनांक: 39.30°C, 102.74°F, 312.45 K
क्वथनांक: 688°C, 1270°F, 961 K
घनत्व: 1.53 g/cm³
Caesium
Symbol: Cs
Atomic number: 55
Electron configuration: [Xe] 6s1
Atomic mass: 132.90545 u
Van der Waals radius: 343 pm
Melting point: 28.5°C, 83.3°F, 301.7 K
Boiling point: 671°C, 1240°F, 944 K
Density: 1.873 g/cm³
सीज़ियम
रासायनिक चिन्ह: Cs
परमाणु संख्या: 55
इलेक्ट्रॉन विन्यास: [Xe] 6s1
परमाणु भार: 132.90545 u
वैन डेर वाल्स त्रिज्या: 343 pm
गलनांक: 28.5°C, 83.3°F, 301.7 K
क्वथनांक: 671°C, 1240°F, 944 K
घनत्व: 1.873 g/cm³
Francium
Symbol: Fr
Electron configuration: [Rn] 7s1
Atomic number: 87
Atomic mass: 223 u
Van der Waals radius: 348 pm
Melting point: 27°C, 80.6°F, 300.15 K
Boiling point: 676.8°C, 1250.24°F, 949.95 K
Density: around 2.48 g/cm³
फ्रैनशियम
रासायनिक चिन्ह: Fr
इलेक्ट्रॉन विन्यास: [Rn] 7s1
परमाणु संख्या: 87
परमाणु भार: 223 u
वैन डेर वाल्स त्रिज्या: 348 pm
गलनांक: 27°C, 80.6°F, 300.15 K
क्वथनांक: 676.8°C, 1250.24°F, 949.95 K
घनत्व: around 2.48 g/cm³

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