Yr 9 Metals & Non metals

Which type of elements can be divided into metals and non-metals?

• Metalloids only

• Non-metals only

• Both metals and non-metals

• Metals only

What property do metals have in terms of conducting heat and electricity?

• They conduct heat and electricity

• They do not conduct heat and electricity

• They conduct only heat

• They conduct only electricity

What is the general property of non-metal elements in terms of density and melting points?

• Low density and low melting points

• Low density and high melting points

• High density and high melting points

• High density and low melting points

What is formed when metals react with water?

• Metal oxide and water vapor

• Metal hydroxide and oxygen gas

• Metal oxide and hydrogen gas

• Metal hydroxide and hydrogen gas

What is the purpose of using alloys instead of pure metals?

• To reduce strength

• To increase hardness

• To decrease resistance to corrosion

• To lower the melting point

Which alloy is used in cutlery due to its hardness and resistance to corrosion?

• Aluminium

• Stainless steel

• Tungsten alloy

• Brass

What property of alloys makes them harder than pure metals?

• High melting point

• Different atomic sizes

• Regular atomic arrangement

• Low density

What is the chemical property of metals when reacting with oxygen?

• Form salt

• Form hydrogen gas

• Form metal hydroxide

• Form metal oxide

Which type of elements form negative ions through electron gain?

• Semimetals

• Metalloids

• Non-metals

• Metals

What is the main difference between metals and non-metals in terms of conducting heat and electricity?

• Metals conduct both heat and electricity, while non-metals conduct only heat

• Metals do not conduct heat and electricity, while non-metals conduct both

• Metals conduct both heat and electricity, while non-metals do not conduct either

• Metals conduct heat but not electricity, while non-metals conduct electricity but not heat