protons,neutrons, electrons.
trends
halogens,noble gases,transition metals
groups/families
rows/periods
alkali, alkaline, and reactivity
100
protons
the atomic number is the amount of _____ in a element
100
non-metal, metal,metalloid
what are the 3 main trends in the periodic table
100
true
true or false halogens are non-metals
100
group 15 period 2
what group and period is nitrogen located in...
100
group 2
alkail metals are in what group..
200
protons and neutrons
the atomic mass is the ______ and ______ added together
200
there is 7
how many energy levels are there.?
200
the 18th (8A)
what column are noble gases located in..?
200
period 6
what period are the lanthanide series in..?
200
in group 1
alkaline metals are in what group..
300
the atomic number
what one thing is different about all the elements
300
the non-metals and metals
the metalloids are located in between.....
300
true
true or false noble gases are located in the 18 column
300
the 7 period
what period is the actinide series in..?
300
very reactive
how reactive are the elements are in group 1 and 7
400
H
what is the chemical symbol of hydrogen.?
400
false
true or false there are mainly non metals is the periodic table
400
8
how many valence electrons are in noble gases
400
group 18 period 4
what group and period is argon in..
400
some what reactive
how reactive are the elects in group 2 and 6
500
the group/column
the valence electrons depends on the group/column or the families/periods
500
they are the most stable or most common isotope
what do the mass numbers in the parentheses mean..?
500
yes
Are transition metals located from 21 to 111
500
period 4 group 8
what period and group in iron in..
500
not as much reactive
how reactive are the elements in group 3,4,and 5..
M
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