Question

Answer the following.

1. Describe all the postulates of Dalton's atomic theory.

2. What are the fundamental particles present in an atom?

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Answer 1

Answer:

Dalton's Atomic Theory

Everything is composed of atoms, which are the indivisible building blocks of matter and cannot be destroyed. All atoms of an element are identical. The atoms of different elements vary in size and mass. Compounds are produced through different whole-number combinations of atoms.

Answer 2

Answer:

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Explanation:

1)Postulates of Dalton’s Atomic Theory

The matter is made up of indivisible particles known as atoms.

The properties of all the atoms of a given element are the same including mass. This can also be stated as all the atoms of an element have identical mass while the atoms of different elements have different masses.

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

Atoms are neither created nor destroyed. This implies that during chemical reactions, no atoms are created nor destroyed.

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

Atoms of an element are identical in mass, size and many other chemical or physical properties, but atoms of two-different elements differ in mass, size, and many other chemical or physical properties.

2)A typical atom consists of three subatomic particles: protons, neutrons, and electrons  Other particles exist as well, such as alpha and beta particles The Bohr model shows the three basic subatomic particles in a simple manner.