FINALS ( GROUP 2 HALOGENS)

Question 1

Halogen originates from the greek words ____ meaning ___ and ___ meaning ___ which signify salt former

Answer 1

Halos
Salt
Genes
Born

Question 2

Halogens are found in group ___ or group ___ of the periodic table

Answer 2

VIIA
17

Question 3

Halogens all have the electron configuration ___ resulting in ___ valence electron. They are one electron away of having the entire outer s and p subleve, making them very reactive.

Answer 3

ns2np5
Seven

Question 4

In their elemental state halogens became ___ molecules (F12, C12, Br2 and I2)

Answer 4

Diatomic

Question 5

Fluorine atomic number and symbol
Chlorine “ “
Bromine “”
Iodine “”

Answer 5

9 ( F)
17 (CI)
35 (Br)
I (I)

Question 6

The physical state of halogens goes from ___ to ___ .
Fluorine and chlorine are ___
Bromine is ___ and Iodine is ___ at a room temperature

Answer 6

Gas
Solid
Gases
Liquid
Solid

Question 7

Fluorine color is ____
Chlorine is ___
Bromine is ___
And iodine is ___

Answer 7

Pale yellow
Greenish-yellow
Reddish-brown
Violet

Question 8

Halogens solubility is affected by their ___ and it decreases as you go down the group

Answer 8

Polarity

Question 9

The density of halogens ___ as you go down. Fluorine is the ___ while iodine is the ___

Answer 9

Increases
Less dense
Denser

Question 10

The melting and boiling points of halogens ___ as you go down the group

Answer 10

Increases

Question 11

Halogens are HIGHLY REACTIVE due to high ____ and ___

Answer 11

Electronegativity
Electron affinity

Question 12

Halogens are strong ___. They oxidized other substances by accepting Electrons

Answer 12

Oxidizing agent

Question 13

The halogens are highly electronegative elements. The electronegativity of the halogens ___ down the group

Answer 13

Decreases

Question 14

Halogens form compounds known as ___ when they react with metals and non metal

WITH METALS: it forms _____ (ex. NaCI, KBr)
With nonmetals : it forms ____ (Ex. HCI, HF)

Answer 14

Halides
Ionic bonds
Covalent bonds

Question 15

Halogen reacts with hydrogen to form _____

EX: HF, HCI, HBr, HI

Answer 15

Hydrogen halide

Question 16

Halogen combines with oxygen to form ___

Answer 16

Halogen oxides

Question 17

Occurs when a more reactive halogen replace a less reactive halide in compound

Answer 17

Displacement reaction

Question 18

Halogen can combine with each other to form ____

Answer 18

Interhalogen compounds

Question 19

Halogens react with ___ differently depending on their position in the group

Answer 19

Water

Question 20

The most reactive and electronegative element

Answer 20

Fluorine

Question 21

Highly reactive and forms compounds with many other elements

Answer 21

Chlorine

Question 22

It is highly reactive and does not occur freely in nature

Answer 22

Bromine

Question 23

Compounds in which one or more hydrogen atoms in an alkane have been replaced by halogen atoms (Fluorine, chlorine, bromine or iodine)

Answer 23

Alkyl halides (Haloalkanes)

Question 24

CH2 between two other (CH3- CH2-Br) are _____

CH between two other (CH3- CH- CH3) are ____

C between four other (CH3 - C- CH3 ) are ___

Answer 24

Primary alkyl
Secondary alkyl
Tertiary alkyl

Question 25

Organic compounds that have a halogen atom attached to an organic ring

Answer 25

Aryl halides (Haloarenes)

Question 26

Used in many commercial products including solvents, motor oil additives and in the synthesis of other products

Answer 26

Aryl halides

Question 27

Are highly reactive substance used primarily in organic synthesis to introduce the acyl group

Answer 27

Acyl halides (acid halide)

Question 28

They react with water, ammonia, and alcohols to give carboxylic acids, amides and esters respectively

Answer 28

Acyl halides

Question 29

Most acyl halides are ___ insoluble in water

Answer 29

Liquids

Question 30

Hydroxyl group hase been replaced by a ____

Answer 30

Halogen

Question 31

Acetyl chloride and ethanoyl chloride are examples of

Answer 31

Acyl halides