2 lecture Flashcards
1
Q
Oxygen
A
water, air, food
2
Q
Carbon
A
food
3
Q
Hydrogen
A
water, food
4
Q
Nitrogen
A
food
5
Q
Mass number
A
the sum of the mass of protons and neutrons
6
Q
1 dalton
A
= 1 atomic mass unit ≈ the mass of one proton or one neutron