Daltom's Postulates

Question 0

Postulate 2 & 3

Answer 0

An element is a type of matter composed of only one kind of atoms, each atom of a given kind having the same properties. (mass is one such characteristic property), which means

• All atoms of a given element are identical
• All atoms of different elements are different

Question 1

Postulate 1

Answer 1

All matter is composed of indivisible atoms. An atom is an extremely small particle of matter that retains its identity during chemical reactions

Question 2

Postulate 4

Answer 2

Atoms of one element can combine with atoms of other elements to form compounds. A given compound always has the same relative numbers and types of atoms.

Question 3

Postulate 5

Answer 3

Atoms are indivisible in chemical processes. That is, atoms are not created or destroyed in chemical reactions. A chemical reaction simply changes the way the atoms are grouped together.