Atom structure
Where are protons found?
In the nucleus of an atom
In what pH range do acids fall?
0 - less than 7
In what pH range do bases fall?
More than 7, up to 14.
What pH does a neutral substance have?
7
What is the name of the chart that shows and organises all the known elements?
Periodic table
What part of an atom circles the outside of the nucleus?
Electrons
Give an example of an acid that doesn't have the word "acid" in it.
Lemon juice, milk etc
Give an example of a base.
Cleaners, soap etc
Give an example of a neutral substance.
Water
Give an example of an instance in real life where you might measure pH.
Fish tank, swimming pool etc
What do we call the sum of protons and neutrons?
Atomic mass
How do acids taste?
Sour
How do bases taste?
Bitter
In a neutralisation reaction, what are the reactants? (2 answers)
An acid and a base
Which two ingredients in homemade sherbet react with each other? (2 answers)
Bicarb soda, citric acid
True or false: an atom of one element can have different numbers of neutrons.
True
True or false: all acids will immediately burn your skin.
False.
How do bases feel?
Slippery or soapy
In a neutralisation reaction, what are the products? (2 answers)
Salt and water
What tool is used to measure pH of liquids?
Litmus paper
What part of an atom defines its element?
The proton.
What ion do acids have?
Hydrogen ions
What ion do bases have?
Hydroxide ions
If the base to be neutralised is a carbonate, what will be the extra product?
Carbon dioxide
Name the scientist who discovered the element Polonium. (Full name required)
Marie Curie