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WorksheetsAtomic Discovery and Structure Quiz
Total questions: 20
Worksheet time: 15mins
What indicates the total number of protons and neutrons in an atom?
atomic number
mass number
ionic number
What is the smallest particle of an element that retains the properties of that element?
atom
ion
isotope
What is the atomic number?
the number of neutrons
the number of protons
the number of ions
What are the three subatomic particle?
Protons, neutrons and electrons
Protons, neutrons and isotopes
Protons, electrons and neutrinos
How many protons does a lithium (Li) atom have?
7
3
+1
What element has 26 protons?
iron
aluminum
polonium
tungsten
How many electrons are in a neutral oxygen atom?
8
16
12
2
What two subatomic particles are in the nucleus of the atom?
Electrons and Protons
Protons and Neutrons
Neutrons and Electrons
What element does an atomic number of 17 represent?
Cl
Sb
Te
In
Which two subatomic particles have mass?
protons and neutrons
protons and electrons
neutrons and electrons
Where are the electrons located in the atom?
Within the nucleus
Outside the nucleus
What is Brownian motion?
Pollen grains moved around by water
Einstien's headache
Boltzman's discovery
What is Rutherford's model of the atom?
Tiny nucleus in the center with electrons around it
Electrons and protons in a cloud
The plum pudding model
What is Bohr's model of the atom?
Electrons arranged in energy levels
Electrons arranged in orbits
Electrons flying into the nucleus
What is a quantum jump?
Electrons jumping from one level to another absorbing or emitting light
Electrons orbiting in circles with energy
Electrons jumping out of orbit of the nucleus with energy
What is matrix mechanics?
A field of math created by Hiesenberg to describe the atom
Einstien's explanation of the atom
Shrodingers wave equation
What did they agree on in Solvay as the true model of the atom?
The quantum model
The wave model
The traditional model
What is the model of the atom we use today?
The quantum model
The wave model
The traditional model
If a uranium (U) atom has a mass number of 238, how many neutrons does it have?
92
146
238
330
How many electrons does a neutral atom of Xenon (Xe) have?
54
131
185
77
