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BIO Exam 1
Question | Answer |
---|---|
# of protons in an atom's nucleus | Atomic Number |
Mass # of an element...Add together | Protons and Neutrons |
8 N and atomic mass of 19, how many electrons are in the outer shell? | 1 |
Different atomic forms contain same # of protons but different # of neutrons | Isotopes |
What is the difference between carbon 12 and 14? | Carbon 14 is radioactive and has more Neutrons than Carbon 12 |
2 isotopes with the same element will have? | Same # of Protons and Electrons but different # of Neutrons |
Atomic # of Neon is 10, what is true? | It has 8 electrons in the outer shell |
Why is water important for life? (one) | Cohesion, Adhesion, High Specific Heat, High heat of vaporization, Solid form is less dense than liquid form, Excellent solvent, Surface tension |
A solution that contains more OH- ions than H+ is a? | Base |
Substance that resists changes in pH in a solution is a? | Buffer |
In order to break down a polymer.... | Hydrolysis/Water is required |