Despite being composed entirely of carbon atoms, diamond and graphite exhibit distinct structures and properties due to their unique atomic ______ its tetrahedral structure where each carbon atom bonds to four others, diamond emerges as the hardest known material, while in contrast, graphite, comprised of layers of carbon atoms linked in hexagonal patterns but weakly bonded to other layers, displays both hardness and slipperiness, making it an ideal choice for pencil lead.15 Mark For Review15Which choice completes the text so that it conforms to the conventions of Standard English?A) arrangements withB) arrangements, withC) arrangements. WithD) arrangements and with

Diamond and Graphite have the sameGroup of answer choicesHardness.Cleavage.Chemical composition.Internal arrangement of atoms.

Diamond is hard, but graphite is soft.(b) (100) plane is absent in the X-ray diffraction pattern of the BCC structure.(c) There is no Face Centered Tetragonal lattice.(d) Larger size anode has less corrosion.(e) A regular 2-D pentagon lattice is not possible.

xplain why in 1-2 lines (6)(a) Diamond is hard, but graphite is soft.(b) (100) plane is absent in the X-ray diffraction pattern of the BCC structure.(c) There is no Face Centered Tetragonal lattice.(d) Larger size anode has less corrosion.(e) A regular 2-D pentagon lattice is not possible.(f) An optical microscope cannot detect nanomaterials ( size < 100 nm).

For decades, the existence of graphene, a material only one atom thick, was considered purely theoretical, but in 2004, physics researchers Andre Geim and Konstantin Novoselov created it in a lab by arranging carbon in a hexagonal lattice structure. Their subsequent studies documenting the material, for which they jointly won the Nobel Prize in Physics in 2010, ------- graphene’s extraordinary strength, electric conductivity, transparency, and density.Which choice completes the text so that it conforms to the conventions of Standard English?to demonstrateeliminateand demonstratedeliminatedemonstratedeliminatedemonstrating

Explain why graphite is:• a good electrical conductor• soft and slippery.You should answer in terms of structure and bonding.[6 marks]