unit 1.4 bonding

Question 1

what is the different types of bonding?

Answer 1

ionic,covalent+metallic

Question 2

how are bonds represented?

Answer 2

dot + cross diagrams in which the outer electrons of 1 atom forming bond = shown as dots or open circles

Question 3

covalent bonding?

Answer 3

each atom gives 1 electron to the single bond pair having opposed spins

Question 4

co ordinate bonding?

Answer 4

a covalent bond in which both electrons come from the same atom as NH4+

Question 5

ionic bonding?

Answer 5

1 atom gives one or more electrons to the other + the resulting cation + anion attract one another electrically. usually, there are many ions together in a solid lattice
energy = needed to form the ions from atoms but this = more than repaid by the strong electrical attraction between cation and snion

Question 6

attractive + repulsive forces

Question 7

electronegativity?

Answer 7

measure of the ability of an atom in a covalent bond to attract the electron bonding pair