prepare down the types of radioactive decay and nuclear reactions.
Element Atomic wt Electronegativity
H 1.01 2.1
B 10.81 2.0
C 12.01 2.5
N 14.00 3.0
O 16.00 3.5
F 19.00 4.0
Molarity = moles /Litre
Molality = moles/ kg of solvent = Cm
%m/m = ( mass of component / mass of sample) x 100
?Tb = Kb.Cm Kb water = 0.512 BP pure water = 100 o C
?Tf = Kf. Cm Kf water = 1.858 FP pure water = 0.00 o C
What are the six types of radioactive decay?
Complete the following nuclear equations
a. proton -> neutron + ?
b. neutron -> proton + ?
c. proton + ? -> neutron
When the process in equation c. occurs an x-ray is also emitted, why?
Classify the following as molecular, ionic, metallic or covalent network solids.
Draw the Lewis structures of the following molecules and then predict their geometry.
Indicate molecular geometry of the atoms and the position of lone pairs.
b. BF 3
c. CH 4
e. H2 O