periodic table and periodic trends

Front

What is electronegativity?

Back

Electronegativity is the tendency of an atom to attract a shared pair of electrons in a chemical bond.

Front

How does electronegativity change across a period and down a group?

Back

Electronegativity increases from left to right across a period and decreases down a group.

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

Front

How does atomic radius change across a period and down a group?

Back

Atomic radius generally decreases across a period and increases down a group.

Front

What are groups in the periodic table?

Back

Groups are the vertical columns in the periodic table that contain elements with similar chemical properties.

Front

What are periods in the periodic table?

Back

Periods are the horizontal rows in the periodic table that represent the energy levels of electrons.

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 across a period and down a group?

Back

Ionization energy generally increases across a period and decreases down a group.

Front

What is electron affinity?

Back

Electron affinity is the amount of energy released when an electron is added to a neutral atom.

Front

How does electron affinity change across a period and down a group?

Back

Electron affinity generally increases across a period and decreases down a group.