Chapter 5, Problem 5.78FU

Interpretation Introduction

(a)

Interpretation:

The atomic number of Te should be determined.

Concept Introduction:

The atomic number of an element is equal to the number of protons present in the nucleus of an atom which is unique for every element.

Interpretation Introduction

(b)

Interpretation:

The number of electrons in an atom of Te should be determined.

Concept Introduction:

The atomic number of an element is equal to the number of protons present in the nucleus of an atom which is unique for every element.

Interpretation Introduction

(c)

Interpretation:

The electronic configuration and abbreviated electron configuration of Te should be determined.

Concept Introduction:

The protons and neutrons of an atom are present in the nucleus of an atom whereas the electrons are always moving around the nucleus of an atom that is they possess kinetic energy. The lowest possible energy level of an electron in an atom is its ground state.

The electrons are arranged around the nucleus of an atom in an increasing order of energy levels and this description of orbitals of atom occupied by electrons is known as electronic configuration.

Interpretation Introduction

(d)

Interpretation:

The group number and the Lewis symbol for Te should be determined.

Concept Introduction:

Structural representation of an element where dots are used to show electron position around the atoms, the dots represent the valence electrons that are those electrons which are present in the valence shell (outer most shell) are known as Lewis dot structure.

Interpretation Introduction

(e)

Interpretation:

The smaller atom among selenium and tellurium should be determined.

Concept Introduction:

The distance from the center of the nucleus of an atom to the outermost electron is said to be the atomic radius of an atom.

Interpretation Introduction

(f)

Interpretation:

The atom having lower ionization energy among selenium and tellurium should be determined.

Concept Introduction:

The energy which is required to remove an electron from the gaseous state of an atom or ion is said to be the ionization energy.