WorksheetsMODULE 2 SHORT QUIZ
Total questions: 20
Worksheet time: 10mins
This model was developed after J.J. Thompson discovered electrons, a particle smaller than an atom. It shows electrons floating freely in a positive region.
The "Plum Pudding Model" of the atom
The "Rutherford Model" of the atom
Democritus's model of the atom
The "Quantum Mechanical Model" of the atom
An atom with the same atomic number but a different mass number is called
an ion
an isotope
an element
In Bohr's model of the atom, where are the electrons located?
in the center of the atom
in energy levels outside the nucleus
spread throughout the atom, like a chocolate chip cookie
__________ determine the chemical reactivity of an atom.
Protons
Electrons
Isotopes
Neutrons
If you change the number of neutrons, you change the __________.
charge
mass
identity
How many protons are in Carbon-14?
6
8
14
12
protons + neutrons =
atomic mass
atomic number
mass number
atomic grass
Which of the following particles is responsible for the formation of ions?
Protons
Neutrons
Electrons
Nucleus
What is the term for atoms of the same element that have different numbers of neutrons?
Ions
Isotopes
Molecules
Compounds
Which number showes the Atomic number
9
4
2+
What does the Bohr Model represent?
The structure of molecules
The structure of the Solar System
The structure of an atom
The structure of East Hills
What are the 3 subatomic particles of an atom?
carbon atom, proton, electron
quarks, neutrons, protons
nucleus, protons, electrons
protons, neutrons, electrons
What is the number of protons that the element in this image contain?
63
29
44
30
What do these isotopes of carbon all have in common?
Neutrons & mass number
Atomic number and neutrons
Atomic number and electrons
Protons, atomic number, and mass number
Fe2+ and Fe3+ have the same number of …
I protons
II neutrons
III electrons
I and II
I and III
II and III
I, II and III
