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WorksheetsElements
Total questions: 12
Worksheet time: 6mins
Which particles are located in the nucleus?
protons
neutrons
electrons
which particles orbit around the nucleus?
protons
neutrons
electrons
what causes an element to change names?
changing proton #
changing neutron #
changing electron #
which number is equal to the number of protons in the atom?
mass number
atomic number
electrical charge
what can you calculate the number of neutrons in an atom?
mass - atomic number
atomic number - mass
mass + atomic number
which particle has a positive charge?
proton
neutron
electron
which particle has a negative charge?
proton
neutron
electron
nucleus
which particle has no charge at all?
proton
neutron
electron
nucleus
what is an isotope?
same number of protons, different number of electrons
same number of protons, different number of orbitals
same number of protons, different number of neutrons
same number of electrons, different number of protons
how many electrons can fit in the fit energy level (orbital)?
1
2
4
8
how many electrons can fit in the second energy level (orbital)?
1
2
4
8
what is a valence electron?
an electron on the first energy level
an electron that has no charge
an electron that moves energy levels
an electron on the outermost orbit
