Assertion: astatine's compound | /r/HasProperty | referred
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text: the negative charge is thought to be on the hydrogen atom, implying that this compound should be referred to as astatine hydride.[refs per above] Consistent with this finding, the electronegativity of astatine in the Allred-Rochow scale (1.9) is less than that of hydrogen (2.2).[WEL][Note] Astatine sublimes less readily than iodine, with a lower vapor pressure;[clarification needed] it also dissolves in water better than iodine.