The particles of a gas are atoms or molecules electrons waves neutrons

Explanation:

A molecule is a substance that contains atoms of either different or same elements.

For example, molecule and NaCl is also a molecule.

On the other hand, a compound always consists atoms of different elements. For example, NaCl is also a compound but is not a compound.

Whereas it is known that gases exist as diatomic molecules. For example, , , are all gases.

Therefore, we can conclude that the particles of a gas are molecules.

The particles of a gas are ATOMS OR MOLECULES.

Hope this helps

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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it's c. elements are placed in rows based on how may valencies electrons have.