Atomic Theory

Question 1

Father of atomic theory

Answer 1

John Dalton

Question 2

John dalton was an _ scientist

Answer 2

English

Question 3

In 1803, John dalton proposed

Answer 3

Theory of the atom

Question 4

John dalton proposed the theory of the atom in year

Answer 4

1803

Question 5

John dalton believed that atoms cannot be

Answer 5

Broken down further

Question 6

Dalton believed that all mater is made of

Answer 6

Atoms

Question 7

Dalton believed that atoms within an element are

Answer 7

The same

Question 8

Dalton believed that atoms from different elements are not

Answer 8

The same

Question 9

Atoms are rearranged during

Answer 9

A chemical reaction

Question 10

Atoms rearranged during a chemical reaction but are not lost is the law of

Answer 10

Conservation of Mass

Question 11

Compounds are formed when

Answer 11

Atoms from two or more elements combine (H2O)

Question 12

In any compound, the ratio of the number of atoms to one another is

Answer 12

A whole number

Question 13

In any compound, the ratio of the number of atoms to one another is a whole number (law)

Answer 13

Law of Multiple Proportions

Question 14

Ratio of number of atoms to one another whole number (example)

Answer 14

CO2 (1c,2o)

Question 15

Law of Multiple Proportions states that if two elements combine to form more than one compound

Answer 15

The masses of one element will combine with the other elements in a whole number ratio

Question 16

Atoms and molecules are the smallest particles a substance can be and

Answer 16

Still retain its chemical and physical properties

Question 17

Another English physicist named

Answer 17

J.J. Thomson

Question 18

J.J. Thomson discovered the

Answer 18

Electron

Question 19

J.J Thomson proposed the _ model of the atom

Answer 19

Plum pudding

Question 20

J.J. Thomson discovered the electron in year _ disproving Dalton’s theory that the atom can’t be broken down

Answer 20

1897

Question 21

Thomson used the idea of

Answer 21

Radiation

Question 22

Radiation is energy that is transmitted in the form of (3)

Answer 22

Waves

Particles

Rays