Q.1.
Which of these metals is a pure element?
Q.2.
The correct chemical symbol for magnesium is .......
Q.3.
An element is a substance that .......
Q.4.
When two elements combine, the name of the compound will end in .......
Q.5.
C is the correct chemical symbol for .......
Q.6.
When the elements lead and bromine combine together, the name of the substance formed is called .......
Q.7.
The smallest part of an element is called .......
Q.8.
Which of these show a diatomic element?
Q.9.
Which of these substances is an element?
Q.10.
Which of these substances is an element?