Group 17

Group 17 of Periodic Table consists of ____ elements

• three

• four

• five

• six

Five elements of Group 17 are flourine (F), chlorine (Cl), bromine (Br), iodine (I) and _______

• nickel (Ni)

• manganese (Mn)

• astantine (At)

• selenium (Se)

Valence shell electronic configuration for all the elements is

• ns²np⁶

• ns²np⁵

• ns²np⁴

• ns²np³

Apart from being known as Group 17, elements in this group also called _____ elements as well as the halogens.

• s-block

• d-block

• p-block

• f-block

Halogens are found in the environment only in compounds or as ions due to their high __________

• stability

• reactivity

• solubility

• density

In the elemental forms, halogen exist as complex covalent molecules.

• True

• False

Apart from preparing chlorine by oxidising its appropriate halide salts with manganese (IV) oxide and the concentrated sulphuric (VI), chlorine can also be prepared by

• heating concentrated nitric acid with manganese (IV) oxide.

• heating concentrated hydrochloric acid with vanadium (IV) oxide.

• heating concentrated nitric acid with vanadium (IV) oxide.

• heating concentrated hydrochloric acid with manganese (IV) oxide.

Halogen molecules are ___________ in water.

• fully soluble

• completely insoluble

• sparingly soluble

_______ reacts vigorously with water.

• Flourine

• Chlorine

• Bromine

• Iodine

________ does not react with water.

• Flourine

• Chlorine

• Bromine

• Iodine