Periodic Trends

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 due to the addition of electron shells.

Front

What is the trend in 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 due to increased nuclear charge pulling electrons closer.

Front

What is ionization energy?

Back

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

Front

How does ionization energy change as you move down a group in the periodic table?

Back

Ionization energy decreases as you move down a group because the outer electrons are further from the nucleus and are held less tightly.

Front

How does ionization energy change as you move across a period in the periodic table?

Back

Ionization energy increases as you move across a period from left to right due to increased nuclear charge.

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 as you move down a group in the periodic table?

Back

Electronegativity decreases as you move down a group because the increased distance between the nucleus and bonding electrons reduces the attraction.

Front

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

Back

Electronegativity increases as you move across a period from left to right due to increased nuclear charge.

Front

What is the periodic table?

Back

The periodic table is a chart that organizes all known elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the core of an atom called?

Back

The core of an atom is called the nucleus, which contains protons and neutrons.