as far as I am aware all particles are made of molecules which in turn are made of atoms which again in turn are made of protons, electrons and neutrons, going further the protons and neutrons are made of quarks, electrons are a fundamental particle and therefore not made of anything.
However, there are some gases, the noble gases (helium, neon, argon, krypton, xenon, radon) that are found naturally as single atoms. Therefore, particles of a gases might be "molecules" or "atoms," depending on the gas.
Sh it!
Smoke is a mixture of gases, solid particle, liquid particles, water vapors and air.
Air particles are gas particles. Some gas particle are larger than others, and the nitrogen (N2) and oxygen (O2) that make up 99% of our atmosphere are rather large, which is why lighter gases, such as hydrogen (H2) and helium (He) rise.
a partial vacuum
Alveoli.
air has mass
gases
particles and gases
MASS
emissions
The particles are known as pollution, aerosols, or particulates, and the harmful gases might be anthropocentric greenhouse gases like carbon dioxide (CO2) and methane (CH4).
air is a mixture of gases, water vapour, dust particles and smoke the atmosphere is a mixture of colourless, odourless and tasteless gases
Diffusion
they have mass A+LS
indoor pollution sources that release gases or particles into the air are the primary cause of indoor air quality problems in homes and businesses?
Diffusion
It is a suspension of dust particles in a mixture of gases. The latter may be considered a solution of other gases in nitrogen.
Normally free floating particles and gases such as oxygen, nitrogen etc.