Review Unit 2 Inorganic Chemistry Atomic structure: protons, neutrons, electrons
ID: 87979 • Letter: R
Question
Review Unit 2 Inorganic Chemistry
Atomic structure: protons, neutrons, electrons
Complete the chart below.
Protons
Neutrons
Electrons
location
Charge
Important factor
Define the following terms:
Atomic number
Mass number
Isotope
Electron configuration and valence electrons
Know how many electrons are able to fill each of the first three shells.
Be able to determine how many valence electrons an atom has. Practice below.
Element
Atomic number
Total # of electrons
# of valence electrons
C
Cl
O
N
Element vs. Compound
Define each and know how they differ.
List the 6 most common elements in the human body
Trace elements and examples. (Assignment)
Know the definition and examples.
Covalent Bonds vs. Ionic bonds vs. Hydrogen bonds
Define each. Know how they differ from each other.
Properties of water due to hydrogen bonds
What water properties are created due to hydrogen bonds?
pH scale, acids vs. bases
Define an acid and a base.
Know the pH scale and the measurements that determine if something is an acid or a base.
Protons
Neutrons
Electrons
location
Charge
Important factor
Explanation / Answer
Protons
Neutrons
Electrons
location
located in the nucleus of an atom
located with protons in the nucleus
move about in the space outside the nucleus like a cloud
Charge
positively charged
no charge, Neutral
negatively charged particles
important factor-labile; i.e, they can be transferred from one atom to the next
Important factor
relatively stable; their number rarely changes
protons and neutrons are bound together through the nuclear force.
Atomic number or the proton numbers(Z)-The total number of protons in the nucleus of an atom gives us the atomic number of that atom.
Mass number(A) -The number of protons and neutrons combined give us the mass number of an atom.
Mass Number (A) = No. of protons + No. of neutrons
Isotopes-are atoms with the same number of protons but that have a different number of neutrons.
Element
Atomic number
Total # of electrons
# of valence electrons
C
6
6
4 valence electrons
Cl
17
17
7
O
8
8
2
N
7
7
5
6 most common elements in the human body-Oxygen,Carbon,Hydrogen,Calcium,Nitrogen and phosphorus.
Protons
Neutrons
Electrons
location
located in the nucleus of an atom
located with protons in the nucleus
move about in the space outside the nucleus like a cloud
Charge
positively charged
no charge, Neutral
negatively charged particles
important factor-labile; i.e, they can be transferred from one atom to the next
Important factor
relatively stable; their number rarely changes
protons and neutrons are bound together through the nuclear force.
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