Atomic Structure--Day 3, Atoms, Isotopes, and Ions
Assignment: Chapter 4, problems 11-14
Reading: Chapter 4, pages 98-104
1.
What are the three subatomic particles in an atom?
2.
What does the atomic number of an atom represent?
3.
What does the mass number of an atom represent?
4.
How does the number of electrons compare to the number of protons in a neutral atom?
5.
What happens to an atom if electrons are taken away?
6.
What happens to an atom if electrons are added?
7.
What do you call an atom that has had electrons added or taken away?
8.
Do all atoms have the same number of neutrons in the nucleus of an atom?
9.
There are two types of carbon atoms: one with 6 protons and 6 neutrons in the nucleus and one
with 6 protons and 8 neutrons in the nucleus. What are these called?
10.
In the following table all of the atoms are electrically neutral. Complete the table.
Symbol
Na
Name
Mass Number
23
Protons
Tin
82
20
10
F
19
In the following table all of the atoms are not electrically neutral. Complete the table.
Symbol
Na+
Name
Mass Number
23
Protons
Tin II ion
Hg2+
Neutrons
Electrons
68
48
20
19
18
80
201
Phosphide ion
Cl12.
Electrons
68
207
11.
Neutrons
What happens to an atom when you change the number of:
Protons
Neutrons
Electrons