Periodic Table Trends and Ions 1.0

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons does Calcium (Ca) have?

Back

Calcium (Ca) has 2 valence electrons.

Front

What is atomic radius?

Back

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

Front

Which element has the largest atomic radius: Cesium (Cs), Lithium (Li), Hydrogen (H), or Potassium (K)?

Back

Cesium (Cs) has the largest atomic radius.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons.

Front

Which element is most likely to gain an electron: Bromine (Br), Fluorine (F), Chlorine (Cl), or Iodine (I)?

Back

Fluorine (F) is most likely to gain an electron due to its high electronegativity.

Front

What ion is formed from Sulfur (S)?

Back

Sulfur (S) forms a S^-2 ion.

Front

How many electrons does a Nitrogen (N) ion gain or lose?

Back

A Nitrogen (N) ion gains 3 electrons to achieve a stable configuration.

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

Back

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