Periodic Trends and Classification

Front

What does the period number in the periodic table indicate?

Back

The period number indicates how many electron shells an element has.

Front

Which element has the largest electronegativity in the halogens?

Back

Fluorine (F) has the largest electronegativity in the halogens.

Front

Which has greater electronegativity: Chlorine (Cl) or Aluminum (Al)?

Back

Chlorine (Cl) has greater electronegativity than Aluminum (Al).

Front

What does it mean for an atom to have high electronegativity?

Back

Atoms with high electronegativity hold on to their electrons more tightly.

Front

How many electrons are in the outermost energy level of group 1 elements?

Back

Atoms of elements in group 1 have one electron in their outermost energy level.

Front

What is electronegativity?

Back

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

Front

How does electronegativity change across a period in the periodic table?

Back

Electronegativity generally increases across a period from left to right.

Front

How does electronegativity change down a group in the periodic table?

Back

Electronegativity generally decreases down a group in the periodic table.

Front

What is the trend of 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 of atomic radius as you move across a period in the periodic table?

Back

The atomic radius decreases as you move across a period from left to right.