Periodic Table Trends Exploration

This video covers periodic table trends, including atomic radius, electronegativity, ionization energy, and metallic character. It explains how these properties change across periods and down groups, using examples and analogies to aid understanding. The video also discusses ionic radius and the formation of ions, summarizing key trends and concepts.

What happens to the atomic radius as you move across a period from left to right?

• It fluctuates.

• It decreases.

• It remains the same.

• It increases.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why does the atomic radius increase as you move down a group?

• The nuclear charge decreases.

• Electrons are lost.

• More energy shells are added.

• More protons are added.

Which element is the most electronegative?

• Fluorine

• Chlorine

• Oxygen

• Nitrogen

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How does electronegativity change as you move down a group?

• It increases.

• It decreases.

• It remains the same.

• It fluctuates.

What is ionization energy?

• The energy released when an atom loses an electron.

• The energy required to add an electron to an atom.

• The energy required to remove an electron from an atom.

• The energy released when an atom gains an electron.

As you move across a period from left to right, what happens to the ionization energy?

• It increases.

• It decreases.

• It remains the same.

• It fluctuates.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element has the highest metallic character?

• Chlorine

• Oxygen

• Fluorine

• Francium

What is the tendency of non-metallic elements?

• To lose electrons

• To gain or accept electrons

• To remain neutral

• To form cations

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is an anion?

• A neutral atom

• A positively charged ion

• An ion with equal protons and electrons

• A negatively charged ion

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

• It is smaller.

• It is the same size.

• It fluctuates.

• It is larger.