What does the periodic table show us? The periodic table shows u the elements ad their atomic number. and the elements are arranged by their atomic number and electron layout.
What is the mass number? The mass number is the total number of proton and neutrons in an atomic nucleus.
What is an atom? Atoms are the simplest form of matter. Atoms make up everything in the world.
What is an element? An element is a substance that can not be broken down into any other substance. Every element is made up of its own different type of atom. Everything in this world is made up of atoms. The periodic table lists all the elements that we know and groups together those with similar properties.
What are alkali metals? Alkali metals are the 6 chemical elements of group 1 on the periodic table, chemical elements metals are sodium, potassium, lithium, francium, rubidium and caesium.
What happened in the experiment? Miss Abernethy put lithium in the water, when she did that the water changed the colour of the water. then she used a little bit of sodium and nothing really happened, then Miss put a bigger piece of sodium and it caught on fire and it made a little explosion.
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