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Match it! Select the correct answer from the pull down...Good luck!
How many periods are on the periodic table?
Ca
7
Number of energy levels
Li
18
18
Nb
Number of valence electrons
Which of these elements will not react with other elements?
Ca
7
Number of energy levels
Li
18
18
Nb
Number of valence electrons
Which element has 2 valence electrons and 4 energy levels?
Ca
7
Number of energy levels
Li
18
18
Nb
Number of valence electrons
What does the number next to the A at the top of each group tell us?
Ca
7
Number of energy levels
Li
18
18
Nb
Number of valence electrons
Which group on the periodic table is the least reactive?
Ca
7
Number of energy levels
Li
18
18
Nb
Number of valence electrons
How many groups are on the periodic table?
Ca
7
Number of energy levels
Li
18
18
Nb
Number of valence electrons
What does the number at the beginning of each period tell us?
Ca
7
Number of energy levels
Li
18
18
Nb
Number of valence electrons
Which element is a metal?
Ca
7
Number of energy levels
Li
18
18
Nb
Number of valence electrons
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