Group 17

These flashcards cover key concepts related to Group 17 elements, including their properties, reactivity, oxidation states, and various applications.

What is the general electron configuration of Group 17 elements?

ns³np³.

How many valence electrons do Group 17 elements have?

7 valence electrons.

What state of matter is Fluorine at ambient conditions?

Gas.

Which element is the most electronegative in Group 17?

Fluorine.

What oxidation state does Fluorine typically have?

-1.

What are the states of matter for Chlorine, Bromine, and Iodine at ambient conditions?

Chlorine - gas, Bromine - liquid, Iodine - solid.

Which gases do halogens not react with?

Helium, Neon, and Argon.

Why is HF considered a weak acid?

Because F is a strong conjugate base.

How does the reactivity of Group 17 elements change down the periodic table?

Reactivity increases down the periodic table.

What is the appearance of Chlorine?

Pale green.

What is the oxidation state of Hypochlorite (CLO)?

+1.

What is the formula for Chlorite?

CIO2.

What oxidation states does Chlorine exhibit?

-1, +1, +2, +3, +5, +7.

What does Bromine do as an oxidizing agent?

Bromine disproportionates.

What type of agent is Chlorate (ClO3)?

Oxidizing agent.

What is the oxidation state of the Perchlorate ion?

+7.

What is the unique characteristic of HF in terms of its range and permittivity?

HF has a wide liquid range and high relative permittivity.

What state is Chlorine dioxide (ClO2) at room temperature?

Gas.

What distinguishes pseudohalides from halogens?

Pseudohalides are less electronegative and have more versatile donor properties.

In terms of shape, what is the molecular geometry of IF5?

Square pyramidal.