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croup 1
Amines and amino acids
Complete the text
The amine function group is which is called . Amino acids contain two functional groups: and
rump. 2
Write the formula of the amine that was formed by replacing one hydrogen atom in an ethane molecule with an amino group. Calculate the mass ratio of the elements contained in this amine.
3
Using the periodic table of the elements, determine the characteristics of the atoms of the elements that make up the amines - give the numbers:
a) protons, neutrons and electrons,

b) valence electrons,

c) electron shells.