Exploring Trends in the Periodic Table: Atomic Size and Ionization Energy

The video tutorial by Mr. Millings covers trends in the periodic table, focusing on atomic size, ionization energy, electronegativity, and ionic size. It explains how atomic size decreases from left to right and increases from top to bottom, while ionization energy and electronegativity show opposite trends. The video also discusses how cations and anions differ in size compared to their neutral atoms. Key relationships between these properties are highlighted, emphasizing their inverse proportionality.

Who created the first periodic table of elements?

• Dmitri Mendeleev

• Marie Curie

• Isaac Newton

• Albert Einstein

How does atomic size change as you move from left to right across a period?

• It remains the same

• It fluctuates

• It increases

• It decreases

Which of the following elements is the largest in size?

• Cesium

• Chlorine

• Calcium

• Nitrogen

What is ionization energy?

• The energy required to remove a valence electron from an atom

• The energy required to add an electron to an atom

• The energy released when an atom gains an electron

• The energy required to break a chemical bond

Which element among the following has the highest ionization energy?

• Cesium

• Calcium

• Nitrogen

• Chlorine

What does electronegativity measure?

• The size of an atom

• The energy required to remove an electron

• The ability of an atom to attract electrons toward itself

• The ability of an atom to lose electrons

Which element is the most electronegative?

• Francium

• Cesium

• Fluorine

• Calcium

How does the size of a cation compare to its neutral atom?

• It is the same size

• It is smaller

• It is larger

• It fluctuates

Which of the following ions is the largest?

• Calcium ion

• Aluminum ion

• Rubidium ion

• Chlorine ion

What is the relationship between atomic size and ionization energy?

• Directly proportional

• They are equal

• No relationship

• Inversely proportional