Is it accurate to describe the physical universe as composed of only matter and energy?

Question

also i have other questions...

2. Breifly explain why the number of electrons circling the nuclus determines the physical and chemical properties of the atom.

3. How is it possible that only 92 elements are found in the natural world but the are millions of different types of substances?

Answer 1

1. Yes.
2. Because almost all of the chemical or physical interactions with atoms are with the electrons, particularly the outermost ones.
3. The elements can combine in many ways. Carbon, in particular, can form millions of different compounds with other elements because it can form long chains.

Postscript: It is true that 92 elements are found in nature, but they are not numbers 1-92. Elements 43 and 61 have no stable isotopes, and small quantities of 93 and 94 are formed by natural irradiation of uranium.

Answer 2

1. Yes

2. It changes the physical properties on the element and determine how it reacts (if it does) with its surroundings.

3. There are billions of permutations and combinations of all of the elements.

Answer 3

yes... it is entirely accurate to describe it that way because matter and energy are all that exists.

3. all the elements combine in soooo many different ways to form compounds that are completely different than the elements they are made of. table salt for example is made of a metal that starts on fire by itself in air, and a gas that will kill you if inhaled.