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On the periodic table, calcium and bromine are located in period 4. What is one difference between the two elements?
Bromine atoms have more electrons in their outer shell than calcium atoms.
These elements are so stable they do not easily react with anything.
arranges the elements based on common physical properties and how they react with each other
valence electrons
63.55
They are metals.
They are less reactive than elements in group 1.
orbitals
What is the atomic weight of copper?
Bromine atoms have more electrons in their outer shell than calcium atoms.
These elements are so stable they do not easily react with anything.
arranges the elements based on common physical properties and how they react with each other
valence electrons
63.55
They are metals.
They are less reactive than elements in group 1.
orbitals
Beryllium, magnesium and calcium are all located in group 2 of the periodic table. What else is true about group 2 elements?
Bromine atoms have more electrons in their outer shell than calcium atoms.
These elements are so stable they do not easily react with anything.
arranges the elements based on common physical properties and how they react with each other
valence electrons
63.55
They are metals.
They are less reactive than elements in group 1.
orbitals
Where are electrons found in an atom?
Bromine atoms have more electrons in their outer shell than calcium atoms.
These elements are so stable they do not easily react with anything.
arranges the elements based on common physical properties and how they react with each other
valence electrons
63.55
They are metals.
They are less reactive than elements in group 1.
orbitals
Beryllium, magnesium and calcium are all located in group 2 of the periodic table. What else do these elements have in common?
Bromine atoms have more electrons in their outer shell than calcium atoms.
These elements are so stable they do not easily react with anything.
arranges the elements based on common physical properties and how they react with each other
valence electrons
63.55
They are metals.
They are less reactive than elements in group 1.
orbitals
The periodic table ____________.
Bromine atoms have more electrons in their outer shell than calcium atoms.
These elements are so stable they do not easily react with anything.
arranges the elements based on common physical properties and how they react with each other
valence electrons
63.55
They are metals.
They are less reactive than elements in group 1.
orbitals
What are the electrons in the outermost shell of an atom called ?
Bromine atoms have more electrons in their outer shell than calcium atoms.
These elements are so stable they do not easily react with anything.
arranges the elements based on common physical properties and how they react with each other
valence electrons
63.55
They are metals.
They are less reactive than elements in group 1.
orbitals
The noble gases helium, neon, argon and krypton are all located in group 18 of the periodic table. What can you predict about these elements, based on their group?
Bromine atoms have more electrons in their outer shell than calcium atoms.
These elements are so stable they do not easily react with anything.
arranges the elements based on common physical properties and how they react with each other
valence electrons
63.55
They are metals.
They are less reactive than elements in group 1.
orbitals
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