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Chemistry > Chalcogens > Flashcards

Chalcogens Flashcards

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1
Q

Also known as the oxygen family

A

chalcogens

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2
Q

Elements that belong to the group 16

A

Chalcogens

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3
Q

Color of chalcogens

A

silvery-gray in common

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4
Q

Melting point of chalcogens

A

-219 C to 988 C

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5
Q

Boiling point of chalcogens

A

Ranging from -297.31 to 1810

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6
Q

Metallic character of chalcogens

A

increases down a group

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7
Q

True or False: Density of chalcogens increase as group goes downwards

A

True

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8
Q

Chalcogens solubility depends on the _________

A

polarity

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9
Q

How many valence electrons does chalcogens have

A

6

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10
Q

Chalcogens readily forms _____ with other elements

A

oxides

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11
Q

chalcogens react with metals to form _____ and _______

A

sulfides and selenides

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12
Q

_____, is known for its chemical reactivity

A

sulfur

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13
Q

True or False: Chalcogens exhibit both acidic and basic properties

A

True

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14
Q

True or False: are non-essential elements in biological systems

A

False

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15
Q

Allotropes of sulfur

A

rhombic sulfur and monoclinic sulfur

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16
Q

Heaviest and only radioactive chalcogen

A

Polonium

17
Q

Treatment for indigestion

A

Aluminum oxide

18
Q

Mask the bitter taste of drugs

A

citric acid

19
Q

Raw material for aspirin

A

Acetic anhydride

20
Q

used for fluorinating

A

sulfur tetraflouride

21
Q

Used in making heavy water

A

Hydrogen sulfide

22
Q

non-CNS depressant

A

Ammonium sulfate

23
Q

an oxidizing agent

A

Selenium oxide

24
Q

Used to maintain plasma selenium

A

Selenious acid

25
Q

Activates anticancer agents

A

Sodium Selenite

26
Q

Used in microbiology

A

Tellurite

27
Q

Discovered by Marie Curie

A

Polonium

28
Q

Superheavy elements that are synthesized using the process of induced radioactivity

A

Livermorium

Chemistry (29 decks)

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