STRUCTURE OF MATTER

Question 1

What are the four centuries of discovery

Answer 1

-Greek Atom
-Dalton Atom
-Thomson Atom
-Bohr Atom

Question 2

What are the four substances in Greek Atom?

Answer 2

Air, Earth, Water, Fire

Question 3

What are the four basic essences in Greek Atom?

Answer 3

Wet, Dry, Hot, Cold

Question 4

Term that is used in Greek Atom and its meaning

Answer 4

Atom which means “ indivisible “

Question 5

It is the smallest particle that has all the properties of an element

Answer 5

Atom

Question 6

Atom is the smallest particle that has all the properties of an _______

Answer 6

Element

Question 7

What is the full name of the English teacher that described the Dalton Atom

Answer 7

John Dalton

Question 8

When did John Dalton described the Dalton Atom?

Answer 8

1808

Question 9

Best describes the Dalton Atom

Answer 9

Hook and Eye Affair

Question 10

This particle determines the element

Answer 10

Proton because they are the atomic number of an element

Question 11

Who made the first periodic of elements?

Answer 11

Dmitri Mendeleev

Question 12

This determines the elemental groupings of elements

Answer 12

Placements of electrons in each atom

Question 13

Thomson Atom is also known as

Answer 13

Plum pudding with the plums representing the electrons

Question 14

Who described the plum pudding atom and says that electrons were the integral part of all atoms?

Answer 14

J.J. Thomson

Question 15

Explain the Thomson Atom

Answer 15

The plums represents the electrons and the pudding represents the shapeless mass of uniform positive electrification

Question 16

Who disproved J J. Thomson Atom?

Answer 16

Ernest Rutherford

Question 17

Explain Nuclear Atom

Answer 17

Its states that atom contains a small, dense, and positively charged center surrounded by a negative cloud of electrons.

Question 18

When and who introduced Bohr Atom

Answer 18

In 1913, Niels Bohr introduced Bohr Atom

Question 19

Explain Bohr Atom

Answer 19

It contains a smal, dense and positive ly charged nucleus surrounded by negatively charged electrons that revolve in a fixed, well defined orbits about the nucleus.

Question 20

TRUE OF FALSE:
In a normal atom, the number of electrons is equal to the number of protons (positive charges in the nucleus).

Answer 20

TRUE