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Question 1

3 Ancient types of formation of elements

Answer 1

NUCLEOSYNTHESIS, FUSION, NEUTRON CAPTURE REACTION

Question 2

is the process that creates a new atomic nucleus.

Answer 2

NUCLEOSYNTHESIS

Question 3

it forms elements with an atomic mass that are within the range of lithium and iron.

Answer 3

FUSION

Question 4

creates any element with an atomic mass higher than iron, which required a tremendous amount of energy to be formed.

Answer 4

NEUTRON CAPTURE REACTION

Question 5

cannot be formed through fusions as tremendous amounts of energy are needed for the reaction to occur.

Answer 5

ELEMENTS HEAVIER THAN IRON

Question 6

is the explosive death of a star or a massive explosion of a star.

Answer 6

SUPERNOVA

Question 7

is the sum of protons and neutrons of a single atom.

Answer 7

Atomic mass

Question 8

is the weighted average of the atomic mass of all natural isotopes of an element.

Answer 8

Atomic Weight

Question 9

recorded the concept of the Atomos, an indivisible building block of matter, as early as the 5th century BCE.

Answer 9

Democritus and Leucippus

Question 10

an English chemist and meteorologist is credited with the first modern atomic theory based on his experiments with atmospheric gases.

Answer 10

John Dalton

Question 11

make up universe as they are continuously moving in a “void” that surrounds them, repelling each other when they collide, or combining into clusters.

Answer 11

Atoms

Question 12

• completely solid which means that there is no void or empty space inside that will make them prone to disintegration or destruction.
• come in different shapes and sizes.

Answer 12

Atoms

Question 13

the founder of the Academy in Athens (the first institution of higher learning in the Western world), first used the term Element.

Answer 13

Plato

Question 14

Greek word for Element

Answer 14

stoicheion

Question 15

Plato treated the four elements geometrically and named them

Answer 15

Platonic Solids.

Question 16

Air

Answer 16

Octahedron (Wet and Hot)

Question 17

Fire

Answer 17

Tetrahedron (Hot and Dry)

Question 18

Water

Answer 18

Icosahedron (Wet and Cold)

Question 19

Earth

Answer 19

Cube (Dry and Cold)

Question 20

shape of the universe.

Answer 20

dodecahedrons

Question 21

Every material in the world is made up of

Answer 21

elements

Question 22

was the finest of all substances

Answer 22

aether (quintessence) (neither Wet nor Dry.)

Question 23

proposed that all matter was composed of atoms, indivisible and indestructible building block

Answer 23

Dalton’s atomic theory

Question 24

is the smallest constituent unit of ordinary matter.

Answer 24

Atom

Question 25

is a subatomic particle found in the nucleus of every atom.

Answer 25

Proton

Question 26

considered as the unit electrical charge

Answer 26

Electron

Question 27

All matter around us is made of Tiny Particles

Answer 27

ATOMOS

Question 28

Indestructible and Unchangeable.

Answer 28

Democritus

Question 29

Elements are Identical, atoms of different elements are different.

Answer 29

JOHN DALTON

Question 30

Atom is Related to Electricity. & Discovery of Electrical Charges

Answer 30

Michael Faraday

Question 31

Discovery of Electrons ( - ) negative charge using Cathode ray tube

Answer 31

J.J Thompson

Question 32

Measured the charge of an electron drop using oil droplets

Answer 32

Robert Millikan

Question 33

Discovery of Proton (+) & Most of atom is empty space

Answer 33

Ernest Rutherford

Question 34

Discover Neutron (No Charge).

Answer 34

Rutherford and James Chadwick

Question 35

Each Element contains a unique number of protons (Atomic Number)

Answer 35

Henry Moseley

Question 36

Agreed with the Planetary Model of the atom. & Electrons orbit the Nucleus.

Answer 36

Niels Bohr

Question 37

Wave Mechanical Models & Electron can Act like particles and waves.

Answer 37

Louis De Broglie

Question 38

Electrons occupy orbitals.

Answer 38

Schrodinger