# Question #7a226

Oct 11, 2016

#### Answer:

Arsenic tri Ioide or diArsenic tri Ioide.

#### Explanation:

As is the symbol for Arsenic Arsenic commonly has a charge of of +3 ( or -3. +5)
l is the symbol of Iodine. Iodine commonly has a charge of -1
(+1,+3,+5,+7)
As Iodine has a higher electronegativity than Arsenic the Iodine will gain the electrons ( be reduced ) and the Arsenic will lose electrons ( be oxidized)

This is an unusual form of Arsenic because each of the atoms ends up with a charge of only + 1.5

Oct 28, 2016

#### Answer:

The chemical name is diarsenic triiodide.

#### Explanation:

${\text{As"_2"I}}_{3}$ is a binary covalent compound.

The names of such compounds are formed according to the pattern:

multiplying prefix + name of first element multiplying prefix + stem of second element + ide (two words)

The multiplying prefixes are di- for "two" and tri- for "three".

The parts of the name are di-arsenic tri-iod-ide, so the name of the compound is

diarsenic triiodide.