Periodic Trends

Front

What type of bond is formed between two nonmetals of the same element?

Back

Nonpolar covalent bond.

Front

What best describes an ionic bond?

Back

A bond between a metal and a nonmetal that have very different electronegativity values.

Front

How many electron shells surround the nucleus of a sodium ion?

Back

2 electron shells.

Front

Which element has the largest atoms among Beryllium, Magnesium, Calcium, and Strontium?

Back

Strontium.

Front

How many electron shells surround the nucleus of a potassium ion?

Back

3 electron shells.

Front

Define electronegativity.

Back

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

Front

What is the trend in atomic radius as you move down a group in the periodic table?

Back

Atomic radius increases as you move down a group.

Front

What is the trend in ionization energy as you move across a period from left to right?

Back

Ionization energy generally increases as you move from left to right across a period.

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of bond where electrons are not shared equally between two atoms.

Front

What happens to the electronegativity of elements as you move from left to right across a period?

Back

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