Periodic Table & Trends

Front

What is Electronegativity?

Back

Electronegativity is the ability of an atom to attract and accept electrons.

Front

Which element has a greater Electronegativity: N or C?

Back

N (Nitrogen) has a greater Electronegativity than C (Carbon).

Front

How did Mendeleev arrange the elements in the Periodic Table?

Back

Mendeleev arranged the elements by atomic mass.

Front

What happens to the electronegativity of elements in group 16 as you move from top to bottom?

Back

The electronegativity of each successive element decreases.

Front

What are the vertical columns in the Periodic Table called?

Back

The vertical columns in the Periodic Table are called groups.

Front

What is the trend in atomic radius as you move down a group in the Periodic Table?

Back

The atomic radius increases as you move down a group.

Front

What is the trend in ionization energy as you move across a period from left to right?

Back

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

Front

What is the definition of atomic mass?

Back

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

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.

Front

What are periods in the Periodic Table?

Back

Periods are the horizontal rows in the Periodic Table, indicating the energy levels of the electrons.