Atomic Structure
[Ar] 4s1 3d5
What is the short electron configuration of Chromium
Shared pair of electrons
What is covalent bonding?
A reaction that has a net energy release
What is an exothermic reaction?
Loss of electrons
What is oxidation?
1/1836
What is the mass of an electron?
Intermolecular force between partially charged hydrogen and oxygen
What is a hydrogen bond?
J Mol-1 K-1
What are the units for entropy
Funnel, Burette, Pipette, Volumetric flask, Conical flask, Indicator, Acid, Base
What is the equipment for an acid-base titration?
Atomic Radii and Nuclear Charge
What factors affect Ionisation energy
Monatomic bonding
What type of bond binds group 0 atoms?
When Gibb's Free Energy is negative
What is required for a spontaneous reaction to occur
Oxidation state is zero
What is the oxidation state of uncharged atoms or molecules composed of one element?
Electrons prefer to occupy an orbital on their own
What is Hund's rule?
High melting/boiling point, soluble, conduct electricity in only water
What are the physical properties of ionically bonded molecules?
One mole of covalent bonds is broken in the gaseous stae
What is bond dissociation enthalpy?
Oxygen is -1
What is the oxidation state of oxygen in a peroxide?
736, 1450, 7740, 10500, 13600
What are first 5 ionisation energies of a group 2 element?
Sigma and Pi bonding
What is a double bond constructed from?
△atHo (Na(s)) + △atHo (1/2 Cl2(g)) + △ieHo (Na(g)) +
△eaHo (Cl(g)) + LEF (NaCl(s))
What is the formation enthalpy of sodium chloride as a solid
What is a disproportionation reaction?