Question

what is meant by tetra atomic and poly atomic?

Answer 1

Tetraatomic Molecule : Fewer elements exist naturally as molecules consisting of four or more atoms. An example of a common and biologically important element that consists as molecules of four atoms chemically bonded together is the element phosphorus. Solid phosphorus usually occurs as a tetratomic molecule (tetra=four).

Polyatomic Molecules are electrically neutral groups of three or more atoms held together by covalent bonds.

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Answer 2

Explanation:

We now know that atoms are made up of three particles: protons, neutrons and electrons — which are composed of even smaller particles, such as quarks. Atoms were created after the Big Bang 13.7 billion years ago. ... Quarks came together to form protons and neutrons, and these particles combined into nuclei.