WorksheetsAtomic Structure, Part 4 - Isotopes
Total questions: 16
Worksheet time: 22mins
What is an isotope?
A charged atom
Two atoms of the same element with different amounts of neutrons
Two atoms of the same element with different amounts of protons
A neutral atom
Which two components of an atom contribute to the mass?
Protons and neutrons
Protons and electrons
neutrons and electrons
Which part of an atom is used to identify it?
number of protons
number of neutrons
number of electrons
When you two atoms with different masses, Carbon-12 and Carbon-13 for example, what type of atom do you have?
Neutral atom
Ion
Isotope
The atomic number is
the number of neutrons
the number of neutrons and protons added together
the number of electrons and protons added together
the number of protons
The atomic mass is
protons and electrons added together
protons and neutrons added together
electrons and neutrons added together
neutrons and electrons added together
Isotopes are atoms that have ...
same number of protons but different number of electrons
same number of neutrons but different number of protons
same number of protons but different number of neutrons
same number of electrons but different number of protons
Determine the atomic number, mass number, number of protons, neutrons, and electrons for a neutral atom of potassium-39.
Atomic # 19
Mass # 39
Protons 19
Neutrons 20
Electrons 19
Atomic # 19
Mass # 39.098
Protons 19
Neutrons 19
Electrons 19
Atomic # 39
Mass # 19
Protons 39
Neutrons 19
Electrons 39
Atomic # 19
Mass # 39.098
Protons 19
Neutrons 20
Electrons 19
What does the number 84 in krypton-84 represent?
the atomic number
the mass number
the sum of the protons and electrons
twice the number of protons
What unit is used to measure weighted atomic mass?
amu
gram
angstrom
nanogram
