AS chemistry helpWatch
E.g give the structure and bonding of Na
Once you identify the obvious from that, then you can talk about why it is that particular structure and what it is composed off.
Good luck, please ask more if you are not sure
it's a group 1 metal so it can form ionic bonds? How can I tell it's structure? Thank you for you help so far so is it a giant ionic or simple ionic?
They key word for bonding in Na is "metal"
So how could this relate to the bonding?
So innermost shell of Na atom has 2, next shell 8 (with 11 electrons total; that leaves 1 in outermost shell (hence Group 1 metal).
Metals (except transition metals) will have up to three electrons in outer shell - they will lose 1-3 from the outer shell e.g. Ca [calcium ATOM] will lose 2 electrons to give Ca++ [calcium ION]; Al [aluminium ATOM] will lose 3 electrons to give Al+++ [aluminium ION]) - a complete 8 in outer shell gives stability.
When sodium atom becomes an ion, it is easier for it to lose one electron than to gain 7 electrons (obviously) to achieve stable 8.
Also sodium is the 2nd smallest metal in Group 1 (after Lithium: atomic no 3) so the electrons are closer to +ve protons in the nucleus, so [unlikes attract - think of girl and boy) so Na is less reactive than e.g. Caesium (also Group 1 metal - much larger) i.e. it is more difficult for electron to "break away" from positive nucleus attraction [protons].
WHEN Na+ ION forms by loss of an electron, there is a net excess of one +ve charge left (one more proton = 11 than electrons = 10 now) so Na+ AND NOT Na- [sounds stupid, but trying to make it simple for you!] - opposite for -ve ions = anions e.g. chlorine atom gains an electron to make Cl- [non-metal])..
Hope this makes it "easy peasy lemon squeezy)
M (private tutor [science])
Thanks for all the help so far
Group 4: Covalent/macromolecular
Groups 5,6 and 7: Simple molecular
Group 0: Exist as free atoms that don't form compounds