An unidentified element has many of the same physical and chemical properties as chlorine and bromine but has a higher atomic mass than either of these elements. What is the most likely identity of this element?.

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21-11-2022
Chemistry

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An unidentified element has many of the same physical and chemical properties as chlorine and bromine but has a higher atomic mass than either of these elements. What is the most likely identity of this element?.

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kjuli1766 kjuli1766 · Answer 1 · 2022-11-24T19:01:48+01:00

The most likely identity of this element is Beryllium.

Bromine and chlorine belong to the same group and therefore have similar chemical properties. The element with atomic number 35 is bromine. Chlorine and bromine belong to the same group and therefore have similar properties. Different numbers of neutrons affect the mass number.

The mass number determines physical properties the atomic number determines chemical properties. Therefore, isotopes have similar chemical properties but different physical properties. The elements with the most similar chemical properties are those in the same group or row of the periodic table. Elements are ordered by atomic number and end up in vertical groups with the same number of valence electrons, so they have similar chemical properties.

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