Font size
WorksheetsModeling Atoms
Total questions: 25
Worksheet time: 21mins
This tells the number of protons in an atom
mass number
atomic number
atomic mass
isotopes
Subatomic particle with a negative charge
proton
neutron
electron
isotope
Subatomic particle with a positive charge
proton
neutron
electron
isotope
Subatomic particle with no charge
proton
neutron
electron
isotope
dense center of an atom
nucleus
proton
electron cloud
electron region
protons plus neutrons
atomic mass
atomic number
isotopes
chemical symbol
the atomic number is
(a)
The chemical symbol is
(a)
The atomic mass is
(a)
The number of proton in an atom of Au
(a)
The number of electrons in an atom of Au
(a)
The number of neutrons in an atom of Au
(a)
If an atom has 20 protons, 29 neutrons and 19 electrons its atomic number is
(a)
What is the mass number of an atom with 10 protons, 15 neutrons, and 10 electrons
(a)
Select the following that determine the identity of an atom
number of protons
number of neutrons
mass number
atomic number
number of electrons
How many valence electrons does Lithium have
(a)
How many valence electrons does Silicon (Si) have?
(a)
How many valence electrons do the Nobel gases have?
(a)
How many valence electrons do all the elements in the alkali earth metal family have?
(a)
Every element has at least 2 electron shells
true
false
Which electrons have the greatest amount of energy
electrons closest to the nucleus
electrons farthest from the nucleus
electrons in the N shell
electrons in the K shell
Atoms are most stable when they have (a) electrons in the outer shell (with the exception of Hydrogen and Helium)
How many electrons make the K shell "full"
(a)
How many electrons does it take to make the M shell "full"
(a)
How many electrons shells does an atom of Beryllium have?
(a)
