WorksheetsChemical Names and Formulas - Lesson 1 - Review of the basics
Total questions: 20
Worksheet time: 16mins
(a) are atoms or groups of atoms that have a positive or negative charge.
A (a) is any atom or group of atoms with a positive charge.
When calcium loses 2 electrons it will have a (a) 2 charge.
An (a) is any atom or group of atoms with a negative charge.
S2- is called the (a) ion.
CO32- is called the (a) ion.
A (a) ion is made up of a single atom.
A (a) ion is a covalently bonded group of atoms with an overall positive or negative charge.
Ionic compounds are always in the (a) (solid/liquid/gas) state at room temperature.
An (a) formula indicates the smallest whole number ratio of positive to negative ions within an ionic compound.
A molecular compound is always made up of 2 or more (a) covalently bonded together.
The smallest representative unit of an ionic compound is called a (a) unit.
How many valence electrons does calcium have?
2
4
6
7
What kind of bond will Potassium form with Sulfur?
ionic
covalent
metallic
no bond
How many atoms are in this molecule? C6H12O6
6
12
18
24
Electrons in the outer most shell are called.....
Electrons
Valence Electrons
Protons
Neutrons
