Periodic Table

Match it! Select the correct answer from the pull down...Good luck!

How many periods are on the periodic table?

What does the number at the beginning of each period tell us?

How many groups are on the periodic table?

Which element has 4 energy levels and 7 valence electrons?

Which group on the periodic table is the least reactive?

Which element has 2 valence electrons and 4 energy levels?

Which of these elements will not react with other elements?

What does the number next to the A at the top of each group tell us?