Question

A. Fill in the blanks.
1. A substance that cannot be further broken into simpler substance is called a Brittle
2. Elements combine together in fixed proportions to form
3.
is the basic unit of matter.
are elements which have the properties of both metals and non-metals.
7.
metal can be cut with a knife.
8.
is a non-metal that shows lustre.
9.
and
metal are used to make electric cables.
are bad conductors of h
​

Answer 1

Examples of well-known elements include oxygen, iron, and gold (see the figure below).

Elements cannot be broken down into a simpler substance. Likewise, one element cannot be chemically converted into a different element. Figure 2.14. Chemical elements are the simplest of substances.

Answer 2

Answer:

2.Elements combine together in fixed proportions to form