Lesson 4.1

Question 1

Dalton’s Atomic Theory Postulate 1

Answer 1

Elements are composed of extremely small particles, called atoms

Question 2

All atoms of a given element are identical, having the same size, mass, and chemical properties. The atoms of one element are different from the atoms of all other elements.

Answer 2

Postulate 2

Question 3

Compounds are composed of atoms of more than one element. In any compound, the ratio of the numbers of atoms of any two of the element present is either an integer or a simple fraction.

Answer 3

Postulate 3

Question 4

A chemical reaction involves only the separation, combination, or rearrangement of atoms; it does not result in their creation or destruction.

Answer 4

Postulate 4

Question 5

Dalton’s atomic model is represented as solid, hard spheres, like billiard (pool) ball as he thought that atoms were the smallest particles of matter.