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Which of these represents part of a family on the periodic table of elements?
2
B, Al, Ge, In, Tl
proton
electron
By the atomic masses.
Li, Be, B, C, N
neutron
The number of protons + neutrons
Which subatomic particle is the smallest?
2
B, Al, Ge, In, Tl
proton
electron
By the atomic masses.
Li, Be, B, C, N
neutron
The number of protons + neutrons
Which subatomic particle can be added or subtracted to create an isotope?
2
B, Al, Ge, In, Tl
proton
electron
By the atomic masses.
Li, Be, B, C, N
neutron
The number of protons + neutrons
How many valence electrons can be found in helium?
2
B, Al, Ge, In, Tl
proton
electron
By the atomic masses.
Li, Be, B, C, N
neutron
The number of protons + neutrons
Define atomic mass.
2
B, Al, Ge, In, Tl
proton
electron
By the atomic masses.
Li, Be, B, C, N
neutron
The number of protons + neutrons
Which subatomic particle determines what element you have?
2
B, Al, Ge, In, Tl
proton
electron
By the atomic masses.
Li, Be, B, C, N
neutron
The number of protons + neutrons
How did Dmitri Mendeleev originally arrange the periodic table?
2
B, Al, Ge, In, Tl
proton
electron
By the atomic masses.
Li, Be, B, C, N
neutron
The number of protons + neutrons
Which of these represents part of a period on the periodic table of elements?
2
B, Al, Ge, In, Tl
proton
electron
By the atomic masses.
Li, Be, B, C, N
neutron
The number of protons + neutrons
Check it!