Periodic Table Quiz

What is the atomic number of sulfur (S)?

• 14

• 16

• 18

• 20

Which of the following elements is in period 4 of the periodic table?

• Sodium (Na)

• Calcium (Ca)

• Chlorine (Cl)

• Helium (He)

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵?

• Oxygen (O)

• Fluorine (F)

• Chlorine (Cl)

• Sulfur (S)

What type of element is located in Group 18 of the periodic table?

• Alkali Metals

• Halogens

• Noble Gases

• Transition Metals

Which element has the smallest atomic radius?

• Lithium (Li)

• Fluorine (F)

• Potassium (K)

• Neon (Ne)

True or False: The number of protons in an atom is always equal to the atomic number.

• True

• False

True or False: All transition metals are found in periods 3 and 4.

• True

• False

True or False: The element with the electron configuration 1s² 2s² 2p⁶ 3s² 3p¹ is a metal.

• True

• False

True or False: The periodic table is arranged by increasing atomic mass.

• True

• False

Write the electron configuration for magnesium (Mg).