Periodic Properties of the Elements Flashcards

1
Q

These individuals first pointed out the periodic recurrence of physical and chemical properties of the elements

A

Dmitri Mendeleev and Lothar Meyer

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2
Q

He showed more exact period table which he based the arrangement of the various elements to their atomic numbers.

A

Henry G.J Moseley

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3
Q

Flame test
The color imparted to the flame by Barium

A

Greenish Yellow

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4
Q

Flame test
The color imparted to the flame by Calcium

A

Brick red

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5
Q

Flame test
The color imparted to the flame by Potassium ions

A

Violet

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6
Q

Flame test
The color imparted to the flame by Sodium

A

Intense yellow

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7
Q

Flame test
The color imparted to the flame by Strontium

A

Crimson red

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8
Q

In reactivity test, what elements whose cation do not form precipate with ammonium carbonate

A

Potassium(K)
Sodium (Na)

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9
Q

In reactivity test, what elements whose cation forms precipate with ammonium carbonate

A

Barium (Ba)
Ca (Calcium)
Sr (Strontium)

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10
Q

Color of bromine in aqueous solution

A

orange

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11
Q

color of bromine in aqueous layer

A

colorless or light orange

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12
Q

color of bromine in chloroform layer

A

orange

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13
Q

color of aqueous solution formed by chlorine

A

pale yellow or colorless

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14
Q

color of chlorine in aqueous layer

A

colorless

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15
Q

color of chlorine in aqueous layer

A

colorless

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16
Q

color of chlorine in chloroform layer

A

pale yellow

17
Q

color of the aqueous solution formed by iodine

A

reddish brown

18
Q

color of iodine in aqueous layer

A

colorless or light reddish brown

19
Q

color of iodine in chloroform layer

A

violet or purple

20
Q

State the Periodic Law

A

The Physical and Chemical properties of the elements are periodic functions of their atomic number.