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WorksheetsPeriodic Table
Total questions: 15
Worksheet time: 24mins
Horizontal rows, called periods, on the periodic table show the number of ___________________________ for elements
Protons
Neutrons
valence electrons
layers of electrons
Columns on the Periodic Table are called groups. They show the number of __________________________ for elements
valence electrons
protons
electron layers
neutrons
The number of protons and neutrons tells you the ____________________ for an individual element
atomic number
atomic mass
valence electrons
group number
The Periodic Table is organized today based on the number of protons. We call this the _______________________.
atomic mass
proton power
atomic number
mass number
All of these properties describe metals EXCEPT...
malleable
good conductors
brittle
shiny luster
Which element is a metalloid?
Titanium
Phosphorous
Potassium
Germanium
How many electrons does a neutral Iodine atom have?
53
126
73
179
Elements that have gained or lost electrons are called _________?
Isotopes
Atoms
Ions
Electrodes
Versions of an element that have extra neutrons are known as _______________?
Ions
Isotopes
atoms
electrodes
The elements with the largest size (atomic radius) are found _________________
in the top left
in the bottom left
in the top right
in the bottom right
a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge
proton
neutron
electron
matter
Which of these properties describe nonmetals?
malleable
poor conductors
ductile
shiny
Which one of these people first developed a periodic table
Henry Mosely
Dmitri Mendeleev
Marie Curie
Amedo Avogadro
