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Sodium (11)
valence electrons
the same atomic mass (weight)
Transition elements
protons
Group 17, the Halogens
representative element
nonmetal
2, 4
Every element has its own atomic number. The atomic number is the number of ____ in the nucleus.
valence electrons
the same atomic mass (weight)
Transition elements
protons
Group 17, the Halogens
representative element
nonmetal
2, 4
Elements in groups 3-12 are called ____.
valence electrons
the same atomic mass (weight)
Transition elements
protons
Group 17, the Halogens
representative element
nonmetal
2, 4
Carbon (6)
valence electrons
the same atomic mass (weight)
Transition elements
protons
Group 17, the Halogens
representative element
nonmetal
2, 4
The electron located in an atom's outermost energy level are called _____.
valence electrons
the same atomic mass (weight)
Transition elements
protons
Group 17, the Halogens
representative element
nonmetal
2, 4
The group that is a great match for bonding with Group 1 (the Alkali metals).
valence electrons
the same atomic mass (weight)
Transition elements
protons
Group 17, the Halogens
representative element
nonmetal
2, 4
Calcium's group # and period #
valence electrons
the same atomic mass (weight)
Transition elements
protons
Group 17, the Halogens
representative element
nonmetal
2, 4
When Mendeleev arranged the known elements of his day into a table, he found that elements with _____ fell into groups.
valence electrons
the same atomic mass (weight)
Transition elements
protons
Group 17, the Halogens
representative element
nonmetal
2, 4
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