Chapter 4 Review Worksheet – Honors
Name: _____________________________________ Period: ____________
1. List the major accomplishments of the following people in the history of an atom.
Dalton –
Democritus –
Thomson –
Rutherford –
2. List the four major accomplishments in Dalton’s atomic theory.
3. Why is Avogadro’s number useful?
4. Name the three subatomic particles. List their symbols and charges.
5. What is the location in the atom of protons, neutrons, and electrons?
-
6. Given the following element, label the atomic number, atomic mass, and symbol. Tell
how many protons, neutrons, and electrons the element has.
28
Nickel
58.71
7. What is an isotope?
8. What is the amount of copper, which has an average atomic mass of 63.55, present in
200 g of copper?
9. What is the difference between an electron in an excited state versus the ground state?
10. Fill in the following chart below.
Element
Strontium
Potassium
Zinc
Bromine
Neon
Symbol
Atomic
Number
Mass
Number
# of
Protons
# of
# of
Electrons Neutrons