Atoms do not always contain the same number
I donβt know
how will the electron configuration of the atom change when the atom becomes an iron
Nothing happens, all stay the same.
Yes, in chemical reactions atoms are neither created nor destroyed, nor changed from one kind to another. Those things can only happen in nuclear reactions. Chemistry deals with how atoms combine with one another.
The molecule remain unchanged.
The atoms of a molecule stay together with chemical bonds.
Chemical reactions do not change the number of atoms so yes, the number of atoms stays the same.
Stay the same as....?. When combining they may share/donate electron(s) to neighbouring atoms.
In chemical reactions the number of atoms stay the same no matter how they are arranged. So, their total mass stays the same.
how will the electron configuration of the atom change when the atom becomes an iron
The amount of atoms stay the same. The element does not change chemically only physically.
Nothing happens, all stay the same.
Yes, in chemical reactions atoms are neither created nor destroyed, nor changed from one kind to another. Those things can only happen in nuclear reactions. Chemistry deals with how atoms combine with one another.
Yes they do
It would stay the same unless some atoms escaped.
The molecule remain unchanged.
The element won't stay the same because the element is determined by its number of protons. The number of protons is also the atomic number.
the number would stay the same