Topic 2 - The Periodic Table Flashcards
what does an elements group determine?
the number of electrons in their outer shell
what is group 1 called?
alkali metals
what is group 7 called?
halogens
what is group 0 called?
noble gases
what are rows of a periodic table called?
periods
do elements in a period have similar properties?
no
why do elements in a group have similar properties?
they have the same number of electrons in their outer shell
what is atomic number equal to?
the amount of electrons an atom has
where are metals on the periodic table?
on the left
where are non-metals on the periodic table
on the right
are metal oxides acidic?
no. they are basic
when a metal oxide dissolves what is the pH?
over 7
are non-metal oxides acidic?
yes
when a non-metal oxide dissolves what is the pH?
less than 7
how do metal oxides react with acids?
they neutralise them
