everything Flashcards
(71 cards)
how many elements are there
There are over 100 different
elements (118)
what are elements made from
atoms
whats a molecule
two or more atoms (same element) strongly bonded together
week acid ph numbers
4-6
strong acid ph numbers
1-3
nutreal ph number
7
week alkali ph number
8-11
strong alkali ph number
12-14
whats distillation
method used to separate different substances in a mixture by heating and cooling them.
whats filtration
filtering insoluble solid from liquid or gas using filter paper
whats chromotography
separation technique used to separate mixtures of soluble substances.
what side are metals on periodic table
left
what side are non-metals on periodic table
right
whats a element
substance made from same type of atoms on the periodic table
whats a compound
different types of elements (there atoms) have chemically bonded
whats a mixture
substance made when elements mix together but dont chemically bond.
colours of ph 1-3
shades of red
colours of ph 4-6
shades of orange and yellow
colour of ph 7
green
colours of ph 8-11
shades of blue
colours of ph 12-14
shades of indigo and purple
which way do periods go on table
horizontal left right
which way do groups go on table
vertical up down
how many groups in periodic table
18
