Periodic Table Trends

Front

What is the atomic radius trend in Group 18 elements?

Back

The atomic radius increases down the group due to the addition of electron shells.

Front

How does electronegativity change across a period and down a group?

Back

Electronegativity increases from left to right across a period and decreases from top to bottom within a group.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom.

Front

Why do atoms get smaller as you move across a period in the periodic table?

Back

Atoms get smaller because they have more protons, which increases the positive charge and pulls the electrons closer to the nucleus.

Front

What are groups in the periodic table?

Back

Groups are vertical columns of elements that have similar properties.

Front

What is the trend of atomic radius as you move down a group?

Back

The atomic radius increases as you move down a group due to the addition of electron shells.

Front

What is the trend of ionization energy as you move across a period?

Back

Ionization energy generally increases as you move from left to right across a period.

Front

What is the relationship between atomic number and electronegativity?

Back

As atomic number increases across a period, electronegativity generally increases.

Front

What is the significance of noble gases in the periodic table?

Back

Noble gases are located in Group 18 and are known for their lack of reactivity due to having a full valence shell.

Front

How does the number of valence electrons affect an element's reactivity?

Back

Elements with fewer valence electrons tend to be more reactive as they seek to lose or gain electrons to achieve a full outer shell.