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Which of the following correctly matches the name of the element with the chemical symbol?
chlorine
Xenon
2
find the number of electrons in an atom and add that to the number of neutrons in the atom
magnesium = Mg
Cl
number of protons
mercury
The symbol for Chlorine is:
chlorine
Xenon
2
find the number of electrons in an atom and add that to the number of neutrons in the atom
magnesium = Mg
Cl
number of protons
mercury
How many electrons can the first electron shell hold?
chlorine
Xenon
2
find the number of electrons in an atom and add that to the number of neutrons in the atom
magnesium = Mg
Cl
number of protons
mercury
Which of the following metals is liquid at room temperature?
chlorine
Xenon
2
find the number of electrons in an atom and add that to the number of neutrons in the atom
magnesium = Mg
Cl
number of protons
mercury
Which of the following is ALWAYS the same as the atomic number of an element?
chlorine
Xenon
2
find the number of electrons in an atom and add that to the number of neutrons in the atom
magnesium = Mg
Cl
number of protons
mercury
Which of the following is a noble gas?
chlorine
Xenon
2
find the number of electrons in an atom and add that to the number of neutrons in the atom
magnesium = Mg
Cl
number of protons
mercury
To find out the average atomic mass, you would:
chlorine
Xenon
2
find the number of electrons in an atom and add that to the number of neutrons in the atom
magnesium = Mg
Cl
number of protons
mercury
Which of the following is a gas at room temperature?
chlorine
Xenon
2
find the number of electrons in an atom and add that to the number of neutrons in the atom
magnesium = Mg
Cl
number of protons
mercury
Check it!