Chapter 14, Problem 14.11P

(a)

Interpretation Introduction

Interpretation:

The names and formulas of stable compounds formed from chemically active $2$ period elements with fluorine has to be given.

Concept Introduction:

Covalent bond:

Molecules are formed by making a bond between two or more atoms by equal sharing of electros, these equally shared electron bond is known as covalent bond.

(b)

Interpretation Introduction

Interpretation:

The $\text{ΔEN}$ increase or decrease left to right across $2$ period has to be given.

Concept Introduction:

Electronegativity:

Within the molecule, the tendency of an atom to attract the bonded electron toward itself is known as electronegativity.

(c)

Interpretation Introduction

Interpretation:

 The percent ionic character is increase or decrease left to right of periodic table has to be given.

Concept Introduction:

Percent ionic character:

Ion is the charged form of atom or molecule, the percentage of ability to make an ion from natural species is known as compound percent ionic character.

    $\text{\%}\text{ ionic character}\text{=}\frac{\text{ΔEN}}{\text{1}\text{.7}}\times 50$

(d)

Interpretation Introduction

Interpretation:

Lewis structures of stable compounds formed from chemically active $2$ period elements with fluorine has to be drawn.

Concept Introduction:

Lewis structures:

The structure of a molecule that shows with bonds and lone pairs of electrons is known as Lewis dot structures or Lewis electron dot structures.