Atoms, Elements and Compounds Flashcards
What charge are protons
Positive, they reside in the nucleus
What charge are nutrons
They don’t have a charge, they reside in the nucleus
What charge are electrons
Negatively, they orbit the nucleus
Define element
A pure substance made up of only one type of atom.
Define compound
A compound is a pure substance made from two or more different elements that are chemically bonded.
Define molecule
Two or more atoms chemically join together.
Name the groups of the periodic table
Reactive metals, transition metals, other metals, non-metals, noble gasses
where are the reactive metals on the periodic table
the left 2 columns
where are the transition metals on the periodic table
the centre area
where are the other metals on the periodic table
the left side of the stairs
where are the non-metals on the periodic table
the right side of the stairs
where are the noble gasses on the periodic table
the rightmost column
where are the stairs on the periodic table
between boron (B) and aluminium (Al) stepping down to the right
When naming 2 elements combined the ending is usually
something-ide (e.g. sodium and chlorine = sodium chloride)
when 3 or more elements combine and one of them is oxygen (O) the ending is
something-ate (e.g. calcium, carbon and oxygen make calcium carbonate)
