Name: ___________________________________ Date: _________________ Class period: ____
Unit: Chemical Names and Formulas
“Review of the Basics” – WS #1
Directions: Please answer each fill in the blank with the best answer. 
1. __________ are atoms or groups of atoms that have a positive or negative charge.
2. A ______________________ is any atom or group of atoms with a positive charge
3. When Calcium loses 2 electrons it will have a ___________________ charge.
4. An ____________________ is any atom or group of atoms with a negative charge.
5. S-2 is called the _____________________ ion.
6. CO3-2 is called the ____________________ ion.
7. A ____________________________ ion is made up of a single atom.
8. A ____________________________ ion is a covalently bonded group of atoms with an
overall positive or negative charge.
9. A __________________is an electrically neutral group of atoms that act as a unit.
10.
A ___________________________shows the kinds and numbers of atoms in one
molecule of that substance.
11.
A ____________________ compound tends to have low melting and boiling points.
12.
Ionic compounds are always in the ________________ state at room
temperature.
13.
An______________________ formula indicates the smallest whole number ratio of
positive to negative ions within an ionic compound.
14.
An ionic compound is always made up of a _____________ and a ______________.
15.
A molecular compound is always made up of 2 or more _______________________
covalently bonded together.
16.
The smallest representative unit of an ionic compound is called a
_____________.
Copyright © 2011 MsRazz ChemClass
Copyright © 2011 MsRazz ChemClass
17. For the following element symbols, write the charge on each element needed
in order to make that element isoelectronic with a noble gas. Ex: F-1
a) Al _____
g) In_____
b) F _____
h) C _____
c) Li _____
i) Group 2 _____
d) Be_____
j) Group 14 _____
e) Se_____
k) Group 17 _____
f) Rb_____
l) Group 13 _____
18.
Name the following monatomic/polyatomic ions: Ex: Mg+2 is called Magnesium
ion
a) Na+1 ________________________
f) P-3 ________________________
b) BrO3-1 _______________________
g) Ca+2 ________________________
c) OH-1 ________________________
h) PO4-3 _______________________
d) Cl-1 ________________________
i) Al+3 ________________________
e) CrO4-2 _______________________
j) S-2 ______________________
Copyright © 2011 MsRazz ChemClass