Biochemistry Part 1: Basic Chemistry- Atomic Structure Flashcards
Basic Chemistry- Atomic Structure
Proton’s charge, AMU, and Location.
+1, 1, Nucleus
Neutron’s charge, AMU, and Location.
0, 1, Nucleus
Electron’s charge, AMU, and Location.
-1, 0, Outside the Nucleus
What charge does an Atom have in Elemental state? Why?
It has a neutral charge because the number of protons is equal to the number of electrons.
Why is Electron Configuration important?
Electron Configuration is important because it can tell you how a particular atom reacts with atoms from other elements.
What is Ground State?
Electrons are in Ground State when the they are on the lowest available energy level.
What is Excited State?
When an Atom absorbs energy, the electrons move to a higher level. This is said to be an Excited State.
Give examples of both Ground and Excited States.
When Photosynthesis occurs, Chlorophyll molecules absorb light energy which puts electrons in Excited State. The electrons then provide the energy to make sugar which makes it in Ground State.
What are Isotopes?
They are atoms of the same element and they vary by their number of neutrons.
How are Isotopes the same? How are they different?
Chemically, they are the same since they have the same number of electrons. They differ by their number of neutrons.
What are Radioisotopes?
Some Isotopes are radioactive. Radioactive Isotopes are called Radioisotopes.
How are Radioisotopes helpful?
Their half life can measure the age of fossils and the Earth. They can be used in medical diagnosis, treatment, and research. I-103 thyroid glands
What is a half life?
The nuclei of radioisotopes emits particles and decays at a known rate called Half Life
