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WorksheetsPeriodic Trends + Mole Conversions
Total questions: 10
Worksheet time: 21mins
As you move down the periodic table the atoms get bigger. This is because ______.
The atoms have more mass
The atoms have more protons
The atoms have more energy levels
The atoms have more neutrons
The atom with the largest radius in Group 18 is _____.
Ar
Kr
He
Rn
Metals have the largest
atomic radius and electronegativity
atomic radius only
electronegativity and ionization energy
ionization energy and atomic radius
According to _____, the elements are organized based upon their physical and chemical properties which are functions of their reactivities.
Henry Mosley
Lothar Meyer
Dmitri Mendeleev
John Newland
Which semi-metal is in the fourth period and the same group as carbon?
silicon
germanium
tin
boron
Why do elements in the same group have similar chemical properties?
They have the same number of energy levels.
They have the same number of electrons.
They have the same number of protons.
They have the same number of valence electrons.
How many moles are in 72.9 g of HCl (hydrochloric acid)?
0.521 mol HCl
2.00 mol HCl
2660 mol HCl
10200 mol HCl
How many grams are there in 0.500 mol Fe2O3?
320. g Fe2O3
79.9 g Fe2O3
7.99 g Fe2O3
160. g Fe2O3
How many molecules are in 8550 g of SO2?
133 molecules SO2
2.21 x 10-22 molecules SO2
5.96 x 1025 molecules SO2
8.03 x 1025 molecules SO2
How many grams are in 3.01 x 1024 molecules (NH4)2SO4?
5.00 g (NH4)SO4
661 g (NH4)SO4
8.31 x 10-24 (NH4)SO4
3.01 x 1024 (NH4)SO4
