Using the Periodic Table

What are the columns of the periodic table called?

• periods

• groups

What are the electrons in the outermost shell of an atom (farthest from the nucleus) called?

• excess electrons

• valence electrons

• far electrons

• ancillary electrons

What do the atoms in the same period (row) of the Periodic Table have in common?

• same number of protons

• same number of electron shells

• same atomic weight

• same number of electrons

What do atoms in the same group (column) of the Periodic Table have in common?

• same number of neutrons

• same atomic number

• same number of electrons

• same number of valence electrons

Do these atoms belong in the same period (row)?

• no

• yes

Do these atoms belong in the same group (column)?

• yes

• no

Use your interactive Periodic Table: What element is in group 7, period 4?

• Titanium (Ti)

• Manganese (Mn)

• Technetium (Tc)

• Osmium (Os)

Use your interactive Periodic Table: What element is in group 1, period 4?

• Radon (Rn)

• Tin (Sn)

• Hydrogen (H)

• Potassium (K)

Use your interactive Periodic Table: What element is in group 18, period 5?

• Krypton (Kr)

• Xenon

• Helium (He)

• Neon (Ne)

What are the rows of the periodic table called?

• periods

• groups