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group 7 > group 7 flashcards on aqa alevel specification > Flashcards

group 7 flashcards on aqa alevel specification

1
Q

What is the general electronic configuration of Group 7 elements?

A

[Ne] 3s2 3p5

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2
Q

Which element is the lightest halogen?

A

Fluorine

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3
Q

True or False: Chlorine is a gas at room temperature.

A

True

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4
Q

What is the trend in boiling points of Group 7 elements as you move down the group?

A

Boiling points increase down the group.

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5
Q

Fill in the blank: The halogens are known for forming __________ with metals.

A

salts

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6
Q

What color is bromine at room temperature?

A

Red-brown liquid

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7
Q

Which Group 7 element is used in the production of PVC?

A

Chlorine

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8
Q

What is the most reactive halogen?

A

Fluorine

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9
Q

True or False: Iodine is a solid at room temperature.

A

True

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10
Q

What type of bond do halogens typically form with hydrogen?

A

Covalent bonds

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11
Q

Which halogen has the highest electronegativity?

A

Fluorine

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12
Q

What is the main characteristic of halogens when they react with alkali metals?

A

They form ionic compounds.

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13
Q

What happens to the reactivity of halogens as you go down the group?

A

Reactivity decreases.

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14
Q

Fill in the blank: The halogens exist in the __________ state at standard temperature and pressure.

A

gaseous, liquid, and solid

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15
Q

What is the primary use of iodine in medicine?

A

Antiseptic

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16
Q

Which halogen is a strong oxidizing agent?

A

Fluorine

17
Q

What is the color of chlorine gas?

A

Pale yellow-green

18
Q

True or False: All halogens can form diatomic molecules.

A

True

19
Q

What is the trend in atomic radius of Group 7 elements as you move down the group?

A

Atomic radius increases.

20
Q

What is the formula for the compound formed when sodium reacts with chlorine?

A

NaCl

21
Q

Which halogen is used in water treatment?

A

Chlorine

22
Q

What type of reaction occurs when halogens react with alkenes?

A

Electrophilic addition

23
Q

Fill in the blank: The halogens have __________ melting and boiling points compared to other nonmetals.

A

higher

24
Q

What is the primary reason for the increasing boiling points of halogens down the group?

A

Increasing van der Waals forces

25
Q

Which Group 7 element is used in photography?

A

Bromine

26
Q

What is the oxidation state of halogens in their compounds with metals?

A

-1

group 7 (1 decks)

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