Exploring Periodic Table Trends and Patterns

The video tutorial explores key periodic trends: atomic and ionic radius, ionization energy, electron affinity, and electronegativity. It explains how these properties change across periods and groups in the periodic table. The tutorial also touches on the periodic table's revisions and interesting trivia about element naming, such as Argentina being named after silver (Ag).

What is the relationship between atomic radius and ionic radius?

• Both increase across a period.

• Both decrease across a period.

• They are unrelated.

• Both are related to the size of an atom.

What is ionization energy?

• Energy needed to remove an electron from an atom.

• Energy needed to add an electron to an atom.

• Energy required to split an atom.

• Energy released when an atom gains an electron.

Why does ionization energy increase across a period?

• Because the outer shell electrons are further from the nucleus.

• Because atoms lose electrons more easily.

• Because there are more protons, increasing electromagnetic force.

• Because atoms get larger.

What is electron affinity?

• Energy needed to split an atom.

• Energy required to remove an electron.

• Energy change when an atom gains an electron.

• Energy change when an atom loses an electron.

Why do Group 1 and 2 metals prefer to lose electrons?

• Because they have low ionization energy.

• To achieve a full outer shell of eight electrons.

• To achieve a stable zero electron configuration.

• Because they have high electron affinity.

Which element has a high electron affinity due to its small size and seven outer shell electrons?

• Oxygen

• Chlorine

• Fluorine

• Neon

Why do noble gases not follow the electron affinity trend?

• Because they have high ionization energy.

• Because they are very reactive.

• Because they are large in size.

• Because they have full outer shells.

What is electronegativity?

• Ability of an atom in a molecule to hold onto bonding electrons.

• Ability of an atom to lose electrons.

• Ability of an atom to gain electrons.

• Ability of an atom to split into ions.

How does electronegativity change across a period?

• It remains constant.

• It increases.

• It fluctuates.

• It decreases.

Which country is named after an element in the periodic table?

• Germany

• Argentina

• France

• India