Name:___________________________________________ Period:________ Growth Goal:_________ August 21, 2014
Atomic Structure – APEMAN : Practice and Homework
Part 1: Complete APEMAN for 1 neutral atom for each of the following elements:
A=
P=
E=
M=
A=
N=
A=
P=
E=
M=
A=
N=
A=
P=
E=
M=
A=
N=
Part 2: Determine the following. Box your answer!
1. How many neutrons are in an atom of lithium?
2. How many neutrons are in an atom of hydrogen?
Name:___________________________________________ Period:________ Growth Goal:_________ August 21, 2014
Atomic Structure – APEMAN : Practice and Homework
3. In a neutral atom, this element has an atomic mass of 23 AMU and has 11 protons.
a. How many neutrons does it have? ____________________
b. What element is it ? ______________________________
4. In a neutral atom, this element has 5 neutrons and an atomic number of 5.
a. What is the atomic mass? ______________________
b. What element is it? ____________________
5. In a neutral atom, this element has 16 neutrons and 15 electrons.
a. What is the atomic mass? ______________________
b. What element is it? ____________________
Part 3: Review
1. The atomic number of an element equals the number of ______________ in its atoms.
2. Label the atomic number, chemical symbol, and the atomic mass/mass number:
o What is the atomic number of oxygen? ________________________
o What is the atomic mass of oxygen? ___________________________
o In one neutral atom of oxygen, there are _____ protons, _____ neutrons, and _____electrons.
3. Label the Table below
Particle
Electron
Mass
Electrical Charge
Location in Atom
Proton
Neutron
4. Draw a diagram of an atom, labeling the two major areas of the atom and where the 3 subatomic particles can
be found