Elements are substances that are made up of just one type of atom. Each element has a unique set of characteristics that scientists refer to as its properties. Elements can be classified into metallic and non-metallic elements. All metallic elements -:

shiny

solid at room temperatures(apart from mercury)

good conductors of heat and electricity

malleable(bent and hammered into sheets)

ductile(stretched into wires

Non -metallic elements-:

dull(not shiny)

do not conduct heat or electricity)

Break or crumble when you bend them(brittle)

solid or gases at room temperature(apart from bromine)

There are 118 elements, but only 91(92) occur naturally.

	Criado por Ahmed Almohammed mais de 8 anos atrás

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Elements, Compounds, Mixtures SUMMARY