Periodic Trends

Front

What is electronegativity?

Back

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

Front

What is an anion?

Back

An anion is a negatively-charged ion that forms when an atom gains electrons.

Front

What is ionization energy?

Back

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

Front

What is a group or family in the periodic table?

Back

A group or family is a vertical (up and down) column in the periodic table.

Front

Which element has the largest atomic radius in Period 4?

Back

Potassium (K) has the largest atomic radius in Period 4.

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 electronegativity change across a period?

Back

Electronegativity generally increases across a period from left to right.

Front

How does electronegativity change down a group?

Back

Electronegativity generally decreases down a group in the periodic table.

Front

What is a cation?

Back

A cation is a positively-charged ion that forms when an atom loses electrons.

Front

What is the periodic law?

Back

The periodic law states that the properties of elements are a periodic function of their atomic numbers.