Periodic Trends

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Which element is the most electronegative?

Back

Fluorine (F) is the most electronegative element.

Front

What are groups in the periodic table?

Back

Groups are vertical columns of elements in the periodic table that have similar chemical properties.

Front

What are periods in the periodic table?

Back

Periods are horizontal rows in the periodic table, indicating the number of electron shells in the elements.

Front

What happens to atomic size as you move across a period?

Back

Atomic size decreases as you move from left to right across a period due to increased nuclear charge.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

How does ionization energy change down a group?

Back

Ionization energy decreases as you move down a group in the periodic table.

Front

What is the trend of electronegativity in the periodic table?

Back

Electronegativity increases across a period and decreases down a group.

Front

What is the relationship between atomic number and the number of protons?

Back

The atomic number of an element is equal to the number of protons in its nucleus.

Front

What is the significance of the periodic law?

Back

The periodic law states that the properties of elements are a periodic function of their atomic numbers.