AQA GCSE Chemistry Topic 2 Question and answers correctly solved 2024 periodic table - correct answer the way in which the elements are organized and classified. Called this because of the regularlly repeating patterns.
John Dalton - correct answer the scientist who proposed one of the firs...
AQA GCSE Chemistry Topic 2- The
Periodic Table
periodic table - correct answer ✔the way in which the elements are
organized and classified. Called this because of the regularlly repeating
patterns.
John Dalton - correct answer ✔the scientist who proposed one of the first
periodic tables, he organized the elements in order of atomic weight
John Newlands - correct answer ✔the scientist who built on the ideas of
Dalton and arranged elements into sets of eight (as he found that each eighth
element had similar properties)
Dmitri Mendeleev - correct answer ✔the Russian chemist who proposed the
periodic table we use today- he left gaps for undiscovered elements.. his table
was accepted by scientific community
atomic number - correct answer ✔Of an elements (number of protons)
determines it position on the periodic table.
group - correct answer ✔a column going down in the periodic table. The
group number equals the number of electrons in the outer shell.
period - correct answer ✔a row going across in the periodic table
metals - correct answer ✔the elements found to the left of the periodic table,
they are electrical conductors
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