Flashcard 3: Electron Configurations

Front

What is electronegativity?

Back

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

Front

Which element has the highest electronegativity?

Back

Fluorine is the element with the highest electronegativity.

Front

What is the electron configuration of Iron (Fe)?

Back

The electron configuration of Iron (Fe) is 1s2 2s2 2p6 3s2 3p6 4s2 3d6.

Front

How many valence electrons does an element in Group 1 have?

Back

Elements in Group 1 have 1 valence electron.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

Why does Francium (Fr) have the lowest ionization energy in Group 1?

Back

Francium has the lowest ionization energy because its 1 valence electron is very far from the nucleus, requiring little energy to remove it.

Front

What is the significance of valence electrons?

Back

Valence electrons determine how an element reacts chemically and its bonding behavior.

Front

Which element has a higher electronegativity: Chlorine or Oxygen?

Back

Chlorine has a higher electronegativity than Oxygen.

Front

What is the general trend of electronegativity in the periodic table?

Back

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

Front

How many valence electrons are in a nitrogen atom?

Back

A nitrogen atom has 5 valence electrons.