Chem Periodic Table Trends

Front

What is the periodic trend for atomic radius as you move across a period?

Back

The atomic radius tends to decrease as you move from left to right across a period due to increased nuclear charge pulling electrons closer.

Front

What are the two most reactive families on the periodic table?

Back

The two most reactive families are the Alkali metals and the Halogens.

Front

Define ionization energy.

Back

Ionization energy is the amount of energy required to remove an electron from an isolated atom or molecule.

Front

What is the trend for ionization energy as you move down a group in the periodic table?

Back

Ionization energy generally decreases as you move down a group due to increased distance of the outer electrons from the nucleus.

Front

Which element has the highest electronegativity in a given group?

Back

Typically, the element at the top of the group has the highest electronegativity.

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 the atomic radius change as you move down a group in the periodic table?

Back

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

Front

What is the trend for electronegativity as you move across a period?

Back

Electronegativity tends to increase as you move from left to right across a period.

Front

What is the relationship between atomic number and the number of protons in an atom?

Back

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

Front

What happens to the ionization energy of elements as you move from metals to nonmetals?

Back

Ionization energy generally increases as you move from metals to nonmetals.