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Inorg Chem > Group VIII & Group VIII A > Flashcards

Group VIII & Group VIII A Flashcards

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1
Q

The iron triad

A

Iron (Fe), Cobalt (Co), Nickel (Ni)

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2
Q

Light platinum metals

A

Ruthenium (Ru), Rhodium (Rh), Palladium (Pd)

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2
Q

Heavy platinum metals

A

Osmium (Os), Iridium (Ir), Platinum (Pt)

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2
Q

Where can ores of cobalt and nickel obtained

A

sulfide ores

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2
Q

What is pyrite similar to

A

gold and is also called as “fool’s gold”

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3
Q

Chief source of iron in industry

A

Hematite (fe[2]O[3])

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3
Q

Pyrite formula

A

FeS[2]

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3
Q

outer configuration of the iron triad

A

partially filled 3d orbitals and 4s^2

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4
Q

the iron triad react with active nonmetals like ?

A

hydrogen, sulfur, and oxygen

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4
Q

iron triad oxidation state in compounds

A

+2, +3

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5
Q

what must be lost in the formation to form a trivalent ion

A

3d electron

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6
Q

what must be lost in the formation to form a divalent ion

A

4s electrons

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7
Q

what does the lost of 4s electron form?

A

divalent ions

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7
Q

what makes the iron triad unique

A

their magnetic properties; they possess this at room temp

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8
Q

what does the lost of 3d electron form?

A

trivalent ions

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8
Q

a weak base from the iron triad

A

iron (III) hydroxide

8
Q

the platinum metals are good catalysts when ?

A

hydrogen is involved

8
Q

the heaviest known substance

A

Osmium (Os)

8
Q

what are the noble metals

A

platinum metals, silver, gold, and mercury

9
Q

Properties of all group VIII elements

A

grayish-white metals with high melting and boiling points

9
Q

what year was inert compounds reported

A

1960s

9
Q

The inert gases

A

Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn)

9
Q

why are noble gases inactive

A

they have a stable configuration

9
Q

what are the inert compounds

A

compounds of xenon (Tetrafluoride and hexafluoride)

10
Q

the most widely distributed and most abundant inert gases

A

Argon

11
Q

percent volume of argon in the air

A

0.94 v/v%

12
Q

inert gas given off by radium salts

A

Radon (Rn)

13
Q

important medicinal property of Radon

A

limited utility in the treatment of cancer

14
Q

properties of Radon

A

radioactive and short lived alpha emitter

15
Q

inert gases that have been investigated as general anesthetics

A

Krypton (Kr) and Xenon (Xe)

16
Q

important medicinal properties of Krypton and Xenon

A

general anesthetics

Inorg Chem (9 decks)

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