Module 3

Question 1

Types of bonds :

Answer 1

1. single bond formation
2. double bond formation
3. triple bond formation

Question 2

• is a particle with an equal number of protons and electrons
  
  • an atom which lose or gain one or more electrons

Answer 2

Ion

Question 3

Two types of ions :

Answer 3

cation
anion

Question 4

• or positive ion
  - an atom which loses one or more electrons

Answer 4

cation

Question 5

• or negative ions
  - an atom which gains one or more electrons thus there are more electrons than
  Proton

Answer 5

anion

Question 6

Metals generally form _________
Non-metals form __________

Answer 6

cations
anions

Question 7

• attraction between positive and negative ions
  - are formed between elements of opposite tendencies

Answer 7

Ionic bonds

Question 8

• a bond in which two atoms share a pair of electron

Answer 8

Covalent Bonds

Question 9

The new cloud after the bonding of the covalent bond is called ________ because it binds two atoms to form a molecule

Answer 9

“molecular orbital “

Question 10

This kind of molecular orbital is called

Answer 10

“ sigma (σ ) orbital”

Question 11

Any orbital, atomic or molecular, can hold a maximum of __________

Answer 11

two electrons

Question 12

Types of Formula:

Answer 12

structural formula
molecular formula
Lewis structure

Question 13

• shows all the atoms and all the bonds connecting them
  - also known as Kekule structure / line-bond structure

Answer 13

Structural formula

Question 14

• gives less information since it only shows the number of atoms and not
  the bonds
  - also known as condensed formula

Answer 14

Molecular Formula

Question 15

• shows not only all the atoms and covalent bonds but also the other outer-
  shell electrons including those that are unshared

Answer 15

Lewis Structure

Question 16

• compounds that have the same molecular formula but different structural formula

Answer 16

Isomers

Question 17

Types of isomerism

Answer 17

chain isomers
position isomers
functional isomer

Question 18

• if one varies the position of some alkyl groups on a parent carbon chain,
  isomers of the given hydrocarbon are obtained

Answer 18

chain isomers

Question 19

• if the position of the double bond is transferred
  - these will have the same number of carbons and hydrogens

Answer 19

position isomers

Question 20

• varying the position of the oxygen of the alcohol and the attached
  hydrogen to a carbon on a parent chain, an ether is formed from an alcohol

Answer 20

functional isomer