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Science > 3rd Periodic Test > Flashcards

3rd Periodic Test Flashcards

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1
Q

Has definite shape and volume

A

Solid

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2
Q

It has no definite shape but has definite volume

A

Liquid

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3
Q

It has no definite shape and no definite volume

A

Gas

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4
Q

Solid to Liquid

A

Melting

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5
Q

Gas to Solid

A

Deposition

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6
Q

Liquid to Solid

A

Freezing

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7
Q

Solid to Gas

A

Sublimation

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8
Q

Liquid to Gas

A

Evaporation

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9
Q

smallest particle of matter

A

atom

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9
Q

Gas to Liquid

A

Condensation

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10
Q

representation of what an atom could look like

A

Atomic model

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11
Q

particle smaller than an atom

A

subatomic particle

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12
Q

First person to use the term “atom.”

His model was “atomos”

A

Democritus

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13
Q

Believed that matter was made of four natural elements.

He opposed Democritus Ideas.

A

Aristotle

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14
Q

solid sphere/billiard ball model

A

John Dalton

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15
Q

First to discover electrons, Plum Pudding Model

A

J.J Thomson/ Joseph John Thomson

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16
Q

He discovered the nucleus and proton using the gold foil experiment. His atomic model is the nuclear model.

A

Ernest Rutherford

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17
Q

improved the model of Ernest Rutherford. He called his atomic model the planetary model.

A

Niels Bohr

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18
Q

He discovered neutrons, His model was called neutron model

A

James Chadwick

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18
Q

He used Heisenburg’s uncertainty principle to come up with the Electron Cloud Model.

A

Erwin Schrödinger

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19
Q

positively charged when it loses electrons

A

cation

20
Q

negatively charged when it gains electrons

A

anion

21
Q

charged atom

A

ion

22
Q

different number of neutrons

A

isotopes

23
Q

Lower energy orbital should be filled first before the next higher energy orbital.

A

Aufbau Principle

24
Q

No two electrons can have exactly the same amount of quantum numbers.

A

Pauli Exclusion Principle

25
Q

Every orbital of the same energy must be singly occupied with one electron before any orbital is double occupied.

A

Hund’s rule

26
Q

law of triads.

A

Johann Dobereiner

27
Q

He then created the Telluric screw

A

Alexander Béguyer de Chancourtois

28
Q

this is called the law of octaves.

A

John Newlands

29
Q

He then arranged the elements by increasing atomic mass

A

Dmitri Mendeleev

29
Q

Published his own arrangement based on increasing atomic mass similar to that of Mendeleev.

A

Lothar Meyer

30
Q

He Determined the atomic number

A

Henry Moseley

31
Q

discovered transuranic elements (actinide and lanthanide)

A

Glenn Seaborg

32
Q

The horizontal arrangement (nasa gilid)

A

Period

33
Q

the vertical arrangement (sa taas)

A

Group

34
Q

Group 1 - 2

A

Alkali / Earth metals

35
Q

Group 3-12

A

Transition Metals

36
Q

Group 13-12

A

Icosagens and Crystallogens

37
Q

Group 15-16

A

Pnictogens and Chalcogens

38
Q

Group 17

A

Halogens

39
Q

Group 18

A

Noble Gases

40
Q

Also known as atomic radius, it is one-half the distance between the nuclei of two atoms.

A

Atomic Size

41
Q

It also measures the size of the atoms.

A

Atomic Size

42
Q

It increases from right to left and up to down.

A

Atomic Size

43
Q

Amount of energy required to remove an electron

A

Ionization Energy

44
Q

It increases from left to right and bottom to top

A

Ionization Energy

45
Q

The ability for elements to attract valence electrons

A

Electronegativity

46
Q

can be found by counting the number of groups from left to right, excluding transition metals

A

Valence electrons

47
Q

It is the ability of an atom to accept an electron.

A

Electron Affinity

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