Everything Science Grade 10

2.5 CHAPTER 2. CLASSIFICATION OF MATTER

a. potassium nitrate

b. sodium oxide

c. barium sulphate

d. aluminium chloride

e. magnesium phosphate

f. tin(II) bromide

g. manganese(II) phosphide

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(1.) 0003 (2.) 0004 (3.) 0005

Metals, Metalloids and

Non-metals

ESAAD

The elements in the periodic table can also be divided according to whether they are

metals,metalloidsornon-metals. The zigzag line separates all the elements that are metals

from those that are non-metals. Metals are found on the left of the line, and non-metals

are those on the right. Along the line you find the metalloids. You should notice that there

are more metals then non-metals. Metals, metalloids and non-metals all have their own

specific properties.

See video: VPaec at http://www.everythingscience.co.za

Metals

Metalloids

Metalloids

Non-metals

H

Figure 2.4: A simplified diagram showing part of the periodic table.

42 Chemistry: Matter and Materials