Physci (3Rd Final)

Front 1

He was the first to ask and answer the question "What is matter composed of?"

Back 1

Thales of Miletus

Front 2

He thought water (H2O) as the ultimate substance that constituted matter. He believed that water could change into a kind of matter

Back 2

Thales of Miletus

Front 3

He considered air, water, earth and fire are the four essential elements that are the sources of all kinds of matter.

Back 3

Empedocles of Agrigentum

Front 4

He is the First Atomist.

Back 4

Leucippus

Front 5

He concluded that fragments of a material could no longer divided continuously, but still have the characteristics of the original material.

Back 5

Leucippus

Front 6

He is the student of Leucippus and he's also dubbed as the Father of Atomism

Back 6

Democritus

Front 7

He expanded Leucippus' atomic hypothesis.

Back 7

Democritus

Front 8

Democritus thought atoms were solid and indestructible and the universe only had atoms and empty space which he called ______

Back 8

Void

Front 9

It is a natural philosophy proposing that the physical universe is composed of fundamental indivisible components known as atoms.

Back 9

Atomism

Front 10

He postulated that fire, water, earth and air are not true elements because they can be broken down into simpler substances such as iron and oxygen

Back 10

Robert Boyle

Front 11

He believed that atoms exist but are not visible to the naked eyes.

Back 11

Robert Boyle

Front 12

He conducted an experiment using a J-Tube Glass.

Back 12

Robert Boyle

Front 13

He is a British chemist who introduced the first "periodic table of elements" and published the first true atomic theory in 1803.

Back 13

John Dalton

Front 14

He is A British Physicist who discovered one of the components of the atoms-the electrons through the cathode ray tube experiment.

Back 14

Joseph John(J.J) Thomson

Front 15

He performed gold foil experiment arrived at a planetary model of an atom.

Back 15

Ernest Rutherford

Front 16

Atoms are tiny, hard spheres that cannot be split up.

Back 16

John Dalton

Front 17

Electrons are distributed inside a positive mass like raising in a plum pudding.

Back 17

J.J Thomson

Front 18

Most of the atom's mass is inside the nucleus. Electrons circle the nucleus. Most of the atoms is empty space.

Back 18

Ernest Rutherford

Front 19

He is a danish physicist who worked on some flaws of planetary model of atom.

Back 19

Niels Bohr

Front 20

He proposed the Bohr Model of the Atom in 1915.

Back 20

Niels Bohr

Front 21

The ________ model states the negatively charged electrons orbit a small, positively charged nucleus.

Back 21

Bohr (Model)

Front 22

Both _____ and _____ later developed the nuclear model of the atom, which states that atom has a central nucleus

Back 22

Rutherford and Bohr

Front 23

He discovered neutron.

Back 23

James Chadwick

Front 24

He is a Russian chemist who arranged the known 65 elements according to increasing atomic mass.

Back 24

Dmitri Mendeleev.

Front 25

He predicted the properties of still unknown elements which discovered after 20 years, these are the noble gases.

Back 25

Dmitri Mendeleev

Front 26

An English chemist who published his version of the periodic table using atomic number as basis for the arrangement.

Back 26

Henry Gwyn Jeffreys Moseley

Front 27

Involves the rearrangement of electrons only.

Back 27

Chemical Reaction

Front 28

New substances or compounds are formed

Back 28

Chemical Reaction

Front 29

Involves the nucleus (proton and neutron)

Back 29

Nuclear Reaction

Front 30

New elements will be formed.

Back 30

Nuclear Reaction

Front 31

Makes elements most stable by rearranging the valence electrons.

Back 31

Chemical Reaction

Front 32

These are the electrons found in the outermost shell of the Atom.

Back 32

Valence Electrons

Front 33

We can determine the valence electron or an element using the two (2) atomic models:

Back 33

1. Bohr Atomic Model

2. Lewis Dot Structure

Front 34

_______ form when atoms lose, accept or share valence electrons.

Back 34

Chemical Bonds

Front 35

The chemical bond is often referred to as an attraction between atoms. This type of attraction is called __________.

Back 35

Intramolecular force

Front 36

What are the two (2) types of chemical bond?

Back 36

1. Ionic Bond

2. Covalent Bond

Front 37

Metals and Nonmetals.

Back 37

Ionic Bond

Front 38

Nonmetals

Back 38

Covalent Bond

Front 39

Eight (8) valence electrons become most stable.

Back 39

Octet Rule