I really dont understand any of these?

Question

1.The motion of electrons can be predicted precisely.

true or false

2. Leptons are found in the nucleus of atoms.

true or false

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

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

Answer 1

It is not possible to know location and momentum of electrons, therefore we can only give volumes with which the electrons have a certain probability of being found in.

Protons and neutrons are hadrons and are found in the nucleus of an atom, electrons are leptons and they are not in the nucleus.

It is not accurate to describe the universe as only containing matter and energy, since there is also dark matter, dark energy, anti-matter and negative energy.

Molecules can contain arbitrary numbers of differing elements, there are a stupendous number of ways in which these can be arranged.

Answer 2

1. false according to uncertainity principle

2.dont know

3.yes what other things you see in universe other than matter and energy

4.because its not necessary that two or more atoms combine themselves in the same orientations . different orientations affect the properties of molecules so they are considered as different