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Match it!
Match it! Select the correct answer from the pull down...Good luck!
Which combination of elements represents part of a group, or family, of the periodic table?(Hint: Find the group of elements that are in the same family.)
the same as it was the day before.
electrons
56
fluorine and chlorine
beryllium and strontium.
protons
Protons = 20 , Neutrons = 20 , Electrons = 20
9, 2, halogen
Two alkaline earth metals are
the same as it was the day before.
electrons
56
fluorine and chlorine
beryllium and strontium.
protons
Protons = 20 , Neutrons = 20 , Electrons = 20
9, 2, halogen
Erica and Jim are given a closed container of ice. They find the mass of 28.0 grams. The container of ice is left on the lab table overnight. The next day, Erica and Jim found that all of the ice had melted. What would the mass of the container be?
the same as it was the day before.
electrons
56
fluorine and chlorine
beryllium and strontium.
protons
Protons = 20 , Neutrons = 20 , Electrons = 20
9, 2, halogen
A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is ____.
the same as it was the day before.
electrons
56
fluorine and chlorine
beryllium and strontium.
protons
Protons = 20 , Neutrons = 20 , Electrons = 20
9, 2, halogen
Which subatomic particles have a positive charge?
the same as it was the day before.
electrons
56
fluorine and chlorine
beryllium and strontium.
protons
Protons = 20 , Neutrons = 20 , Electrons = 20
9, 2, halogen
Which subatomic particles have a negative charge?
the same as it was the day before.
electrons
56
fluorine and chlorine
beryllium and strontium.
protons
Protons = 20 , Neutrons = 20 , Electrons = 20
9, 2, halogen
The element fluorine has ________ protons in its nucleus. Fluorine also has a total of ____ electron shells. Fluorine is a member of the __________ family.
the same as it was the day before.
electrons
56
fluorine and chlorine
beryllium and strontium.
protons
Protons = 20 , Neutrons = 20 , Electrons = 20
9, 2, halogen
Which of the following represents an atom of calcium?
the same as it was the day before.
electrons
56
fluorine and chlorine
beryllium and strontium.
protons
Protons = 20 , Neutrons = 20 , Electrons = 20
9, 2, halogen
Check it!