Periodic Trends

Front

What is a metal?

Back

A metal is a type of element that is typically shiny, malleable, ductile, and a good conductor of heat and electricity. Examples include zinc (Zn) and cadmium (Cd).

Front

What is a metalloid?

Back

A metalloid is an element that has properties of both metals and nonmetals. They are semiconductors of electricity. An example is arsenic (As).

Front

What is a nonmetal?

Back

A nonmetal is an element that is typically dull, brittle, and a poor conductor of heat and electricity. Examples include iodine (I) and sulfur (S).

Front

What is electronegativity?

Back

Electronegativity is a measure of how strongly an atom attracts electrons in a covalent bond.

Front

Which element has the highest electronegativity in the halogens?

Back

Fluorine (F) has the highest electronegativity among the halogens.

Front

What happens to atomic size as you move down a group in the periodic table?

Back

Atomic size increases as you move down a group because atoms have more energy levels.

Front

What is the trend in electronegativity across a period?

Back

Electronegativity generally increases across a period from left to right.

Front

What is the trend in atomic radius across a period?

Back

Atomic radius generally decreases across a period from left to right.

Front

What is the trend in ionization energy down a group?

Back

Ionization energy generally decreases as you move down a group in the periodic table.

Front

What is ionization energy?

Back

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