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the atom

atomic structure

Who created the periodic table? Dimitri mendeleev
How many elements are in the periodic table? 118
what particles make up the atom? protons, neutrons and electrons
what is the atomic number of an element? number of protons in the atom of an element
what is the mass number of an element ? sum of protons and neutrons in an atom of an element
how many groups are there in the periodic table? 8
what charge is on a proton? positive
what charge is on a neutron? neutral
what charge is on an electron? negative
what is found in an orbital? electrons
where is the proton located? the nucleus
where is the neutron located? the nucleus
do any 2 elements have the same atomic number ? no
how many electrons are in the first shell of an atom? 2
how many electrons does an atom want in the outer shell? 8
where is the electron likely to be found ? in an orbital around the nucleus
true/false an atom becomes more stable with a full outer shell? true
true/false carbon has 3 shells? false
true/false neils bohr created a model for drawing atoms? true
Where are the noble gases located on the periodic table? group 8
true/false the noble gases are very reactive? false
why are noble gases nonreactive? they have a full outershell
is neon a noble gas? yes
how many electrons are in neon outer shell? 8
group 7 has 7 electrons on their outershell .. how many electrons does group 2 have on its outershell? 2
Created by: donohm32