5. Which of these amino acids would have a positive charge at pH 7.0? a) Lys b) Asp
c) Met
d) Gly

6. Which of these amino acids has three nitrogen atoms in its structure? a) Lys
b) Arg
c) Tyr
d) Val

7. Beta sheets are an example of:
a) primary structure
b) secondary structure
c) tertiary

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but