An element contains
- atoms of only one type
- more than one type of atom chemically joined
- several compounds in one place
- more than one type of atom not chemically joined
A compound is
- two or more different types of atoms chemically joined
- two or more different types of atoms chemically joined
- more than one type of atom not chemically joined
- one type of atom bonded together in lumps
Atoms are
- the smallest parts of any substance
- the largest parts of any substance
- the same colour
- the same size
Elements can exist in three different states; which of these is not correct?
- smoke
- solid
- liquid
- gas
Sulphur Dioxide is
- a compound
- a mixture of elements
- a mixture of compounds
- an element
The first scientist to suggest the name element was
- Robert Boyle
- Louis Pasteur
- Marie Curie
- Galileo
A molecule is
- two or more atoms or types of atoms chemically joined
- atoms of only one type chemically joined
- two or more elements not chemically joined
- two or more elements chemically bonded together
Which is the correct symbol for Carbon?
- C
- Ca
- Cn
- Cb
Which is the correct symbol for Sodium?
- Na
- S
- So
- Ns
In a solid the particles are arranged
- regularly and tightly packed, they are not free to move
- irregularly and less tightly packed, they are free to move
- irregularly and very spaced out, they are free to move
- regularly spaced and freely moving
In a liquid the particles are arranged
- irregularly and less tightly packed, they are free to move
- regularly and tightly packed, they are not free to move
- irregularly and very spaced out, they are free to move
- regularly spaced and freely moving
In a gas the particles are arranged
- irregularly and very spaced out, they are free to move
- irregularly and less tightly packed, they are free to move
- regularly and tightly packed, they are not free to move
- regularly spaced and freely moving
Which of these properties do not apply to metals?
- low melting point
- conduct electricity well
- conduct heat well
- high density
Which of these properties do not apply to non-metals?
- conduct electricity well
- low density
- low melting point
- brittle
Which of these properties do not apply to metals?
- do not conduct heat well
- high melting point
- ductile
- malleable
Which of these properties do not generally apply to non-metals?
- high density
- low melting point
- soft
- brittle
Which of these is not one of the groups of the periodic table?
- non-metals
- transition metals
- alkali metals
- noble gases
Which of these is not used to decide where an element fits in the periodic table?
- colour
- atomic number
- atomic mass
- reactivity
If we heat magnesium in air it forms magnesium oxide, which weighs more than the magnesium we started with. This is because
- it has reacted with the oxygen forming a compound
- the particles of ash have lodged between the particles of the magnesium making it heavier
- the magnesium particles get bigger when we heat them making them heavier
- the particles of the air sit on the surface of the magnesium making them heavier
Which scientist came up with the modern form of the periodic table in 1869?
- Dmitri Mendeleev
- Charles Faraday
- Sir Isaac Newton
- Ptolemy
Gold is a precious metal used to make jewellery.
Which of these properties is not a property of Gold?
- Reacts readily with water
- Unreactive
- Malleable
- Conducts electricity very well
In the periodic table elements are given symbols. Which of the following is not one of the rules?
- It sounds good
- Use the first letter where possible
- Where there is a clash use the first two letters
- Where there are more than two clashes use the Latin version of the name and refer to the other two rules
Which of the following properties of iron is not a good reason to make ships out of it?
- Reacts readily with water
- Malleable
- Strong
- High melting point
What fraction of the elements are metals?
- 3/4
- 1/2
- 1/4
- 1/3
What fraction of the elements are non-metals?
- 1/4
- 2/3
- 3/4
- 1/6
Chemicals that react together are called
- reactants
- products
- atoms
- elements
The chemicals produced when substances react together are called
- products
- reactants
- elements
- metals
How many different kinds of atoms must there be in an element
- 1
- 2
- 4
- 16
Which statement is true?
- the formula for a particular compound is always the same
- the formula for a particular compound is never the same
- the formula for a particular compound is sometimes the same but can be different
- The formula for a particular compound is impossible to predict
How many atoms are there in one molecule of Carbon Dioxide?
- 3
- 4
- 2
- 6