Chapter 9, Problem 55IAE

Interpretation Introduction

(a)

Interpretation:

Which element is a metal should be determined.

Concept introduction:

Most of the elements found in the periodic table are metals. All elements in group 1 and 2 are metals except hydrogen. All elements in d block are metals. They are called transition metals. All the elements in lanthanide and actinide series are metals and some of metals are included in p block.

Interpretation Introduction

(b)

Interpretation:

Which element has the greater ionization energy should be determined.

Concept introduction:

Ionization energy is amount of energy must be absorbed by a gaseous atom in ground state to remove an electron. Further away the electron from the nucleus; it’s easy to remove the electron from the atom/ion. Hence, ionization energy will be less.

Interpretation Introduction

(c)

Interpretation:

Which element has the larger atomic radius should be determined.

Concept introduction:

Atomic radius is the distance between the nucleus and the valence electron shell of the atom.

Interpretation Introduction

(d)

Interpretation:

Which element has the greater electron affinity should be determined.

Concept introduction:

Electron affinity is the change in energy when an electron is added to an atom to form a negative ion.