Question

7 a Consider the chemical properties and physical
properties of the halogens chlorine, bromine
and iodine. Using these properties, predict the
following about the other two halogens, fluorine
and astatine.
Fluorine
Astatine
Property
State at room temperature
and pressure
Colour
Reactivity with sodium metal
b (i) Write a word equation for the reaction of
fluorine
gas
with sodium chloride solution.
(ii) Write a balanced chemical equation for the
reaction, with state symbols.
(iii) Write an ionic equation for the reaction,
with state symbols.​

Answer 1

Explanation:

What is the physical properties of halogens?

Halogens are nonmetals. At room temperature, fluorine and chlorine are gases and bromine is a liquid. Iodine and astatine are solids. Halogens are very reactive, the reactivity decreases from fluorine to astatine.