Which of the following is/are postulates of Dalton’s atomic theory? 1. Atoms combine in fixed ratios of whole numbers. 2. Atoms of each element have different properties. 3. Elements occur as solids, liquids, or gases. Group of answer choices

1 and 2

Explanation:

The postulates of Dalton's atomic theory are;

- Matter is made up of indivisible particles known as atoms.

- Atoms of same elements have same properties while atoms of different elements have different properties.

- Atoms of different elements combine in fixed ratios to form compounds.

- Atoms are neither created nor destroyed.

- The formation of new products (compounds) results from the rearrangement of existing atoms (reactants).

By comparing the postulates above and those in the questions, we find that only the following postulates are part of the daltons atomic theory;

1. Atoms combine in fixed ratios of whole numbers.

2. Atoms of each element have different properties.

b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3.

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation: