Bromine
Table:
Bromine
Pronunciation	/ˈbroʊmiːn, -mɪn, -maɪn/ ​(BROH-meen, -⁠min, -⁠myn)
Appearance	reddish-brown
Standard atomic weight Ar, std(Br)	[79.901, 79.907] conventional: 79.904
Atomic number (Z)	35
Group	group 17 (halogens)
Period	period 4
Block	p-block
Element category	Reactive nonmetal
Electron configuration	[Ar] 3d10 4s2 4p5

Electrons per shell

2, 8, 18, 7
Phase at STP	liquid
Melting point	(Br2) 265.8 K ​(−7.2 °C, ​19 °F)
Boiling point	(Br2) 332.0 K ​(58.8 °C, ​137.8 °F)
Density (near r.t.)	Br2, liquid: 3.1028 g/cm3
Triple point	265.90 K, ​5.8 kPa
Critical point	588 K, 10.34 MPa
Heat of fusion	(Br2) 10.571 kJ/mol
Heat of vaporisation	(Br2) 29.96 kJ/mol
Molar heat capacity	(Br2) 75.69 J/(mol·K)
Oxidation states	−1, +1, +3, +4, +5, +7 (a strongly acidic oxide)
Electronegativity	Pauling scale: 2.96
Ionisation energies

1st: 1139.9 kJ/mol
2nd: 2103 kJ/mol
3rd: 3470 kJ/mol

Atomic radius	empirical: 120 pm
Covalent radius	120±3 pm
Van der Waals radius	185 pm
Natural occurrence	primordial
Speed of sound	206 m/s (at 20 °C)
Thermal conductivity	0.122 W/(m·K)
Electrical resistivity	7.8×1010 Ω·m (at 20 °C)
Magnetic ordering	diamagnetic
Magnetic susceptibility	−56.4·10−6 cm3/mol
CAS Number	7726-95-6
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Discovery and first isolation	Antoine Jérôme Balard and Carl Jacob Löwig (1825)

From the table, state whether the hypothesis is entailed, neutral, or refuted. Return the result as JSON: {"answer": "YOUR ANSWER"}.

Statement: Bromine was first discovered in the 1900s.

answer: refuted