JOHN DALTON (1766-1844)

Question 1

In 1803, ——— proposed his theory of the atom.

Answer 1

JOHN DALTON (1766-1844)

Question 2

• His atomic theory explained the existing laws and principles about the concept of chemical combination.

Answer 2

JOHN DALTON (1766-1844)

Question 3

• It was also based from the works of earlier scientists.

Answer 3

JOHN DALTON (1766-1844)

Question 4

• He is regarded as the “father of the modern atomic theory”. His atomic theory states the following:

Answer 4

JOHN DALTON (1766-1844)

Question 5

• Matter is made up of very small, invisible, and indivisible particles called atoms.
• Atoms of the same element have the same properties.
Atoms of different elements differ in properties.
• Atoms cannot be created nor destroyed in any chemical reaction.
• Atoms combine with each other in whole number ratios to produce compounds.

Answer 5

Dalton’s atomic theory

Question 6

• Gave explanations to the fundamental laws in chemistry.
• These are the ———

Answer 6

Dalton’s Atomic Theory

Law of Conservation of Mass, the Law of Definite Proportion, and the Law of Multiple Proportions.