Ok so i need the answer to all the questions i'm giving 17 points as well ! how does the atomic structure affect the behaviour and properties of an atom? what are the roles of protons and electrons? what are noble gases and why are they the most stable elements?

How does the atomic structure affect the behaviour and properties of an atom?

The electronic configuration helps determine the physical and chemical properties of an atom.

What are the roles of protons and electrons?

The role of a proton shows the tendency for an atom to either lose, gain, or share electrons. The role of an electron is used for chemical bonding.

What are noble gases and why are they the most stable elements?

Noble gases are the chemical elements located in the Group 18 (last column of the periodic table). They are the most stable elements due to having the maximum number of valence electrons in their outer shell.

It changes food into energy that the organism can use.

29.1-12=17.1the answer is this one