Exploring the Periodic Table

Identify the element located in Group 2 and Period 4 of the periodic table.

• Calcium (Ca)

• Magnesium (Mg)

• Beryllium (Be)

• Strontium (Sr)

Identify the element located in Group 16 and Period 3 of the periodic table.

• Oxygen (O)

• Sulfur (S)

• Selenium (Se)

• Tellurium (Te)

Which of the following elements is a noble gas?

• Helium (He)

• Lithium (Li)

• Beryllium (Be)

• Boron (B)

Which of the following elements is an alkali metal?

• Calcium (Ca)

• Sodium (Na)

• Magnesium (Mg)

• Aluminum (Al)

Which of the following elements is an alkaline earth metal?

• Potassium (K)

• Strontium (Sr)

• Iron (Fe)

• Copper (Cu)

Which of the following elements is a transition element?

• Zinc (Zn)

• Argon (Ar)

• Silicon (Si)

• Phosphorus (P)

Which of the following elements is a lanthanide?

• Cerium (Ce)

• Lead (Pb)

• Tin (Sn)

• Antimony (Sb)

Determine the number of electrons, protons, and neutrons in Sr-69

• 38 electrons, 38 protons, 31 neutrons

• 38 electrons, 31 protons, 38 neutrons

• 31 electrons, 38 protons, 38 neutrons

• 38 electrons, 38 protons, 69 neutrons

Identify the atomic number as the number of protons in an atom.

• The atomic number is the number of neutrons.

• The atomic number is the number of electrons.

• The atomic number is the number of protons.

• The atomic number is the sum of protons and neutrons.

• 26

• 33

• 59

• 85