Answer:
i. boron
ii. silicon
iii. germanium
iv. arsenic
v. antimony
vi. tellurium
vii. polonium
Explanation:
Elements that have appearance and properties of a metal but behave like non-metal in certain conditions are called <em>semi-metals</em> or<em> metalloids</em>. On the periodic table, they are found between metals and non-metals. Examples are astatine, polonium, tellurium, antimony, arsenic, germanium, silicon, boron.
<em>Some of their properties that make them look like metals are:</em>
i. They exist as solids at room temperature.
ii. They are shiny.
iii. They are ductile.
<em>Some of their properties that make them look like non-metals are:</em>
i. They are brittle.
ii. Not very good conductor of electricity compared to metals.
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