Understanding the Periodic Table

Who is considered the father of the periodic table?

• Marie Curie

• Isaac Newton

• Dmitri Mendeleev

• Albert Einstein

What is the primary basis for organizing elements in the periodic table?

• Density

• Chemical reactivity

• Atomic number

• Atomic mass

What does the atomic number of an element represent?

• Number of neutrons

• Number of isotopes

• Number of electrons

• Number of protons

What is the significance of elements in the same column of the periodic table?

• They have the same number of neutrons

• They are all metals

• They have similar chemical properties

• They have the same atomic mass

What are the horizontal rows in the periodic table called?

• Groups

• Blocks

• Periods

• Families

Which elements are known for being chemically inert?

• Alkali metals

• Noble gases

• Halogens

• Transition metals

What separates metals from non-metals in the periodic table?

• A red staircase

• A blue line

• A green border

• A yellow band

Which group of elements reacts violently with water?

• Halogens

• Transition metals

• Noble gases

• Alkali metals

What are the elements from scandium to zinc known as?

• Lanthanides

• Actinides

• Transition metals

• Alkaline earth metals

Which group includes elements like fluorine and chlorine?

• Metalloids

• Alkali metals

• Halogens

• Noble gases