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prepare down the types of radioactive decay and nuclear reactions.

Data
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

problem
Part 1
What are the six types of radioactive decay?
Part 2
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?

Part 3
Classify the following as molecular, ionic, metallic or covalent network solids.
a. Graphite
b. Diamond
c. NaCl
d. Fe
f. S8

Part 4
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.
a. BeF2
b. BF 3
c. CH 4
d. NH3
e. H2 O

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