1.
What is meant by the term compound?
2.
The chemical symbol for oxygen is
4.
When a substance is analysed using an electron microscope, it is found to contain only one type of atom.
This substance is
5.
The properties of a compound will be the same as the properties of the elements that make up the compound
6.
The smallest part of a compound which still has the properties of that compound is called
8.
Which one of the following represents the compound called carbon dioxide?
9.
The chemical symbol "Ca" represents which of the following elements?
10.
Which one of the following is the electronic configuration for a group VII (7) element?
11.
Where are the electrons located in an atom?
12.
The following are products of fractional distillation of crude oil except
14.
How many different types of atom may be present in a compound?
17.
Which of the following pairs of properties is correct for the proton?
18.
The chemical symbol of gold is
19.
Calcium is in group II (2) of the Periodic Table. How many electrons does it have in its outer shell?
20.
The period in which an element is located gives us
