Unit 3 Review

Front

Which element is the easiest to take an electron from?

Back

Fr (Francium) is the easiest to take an electron from due to its low ionization energy.

Front

What is the group name and number for Magnesium?

Back

Magnesium is in the Alkaline Earth Metals group, which is group 2 or 2A.

Front

What is electronegativity?

Back

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

Front

Which noble gas has 3 electron shells?

Back

The noble gas with 3 electron shells is Argon (Ar).

Front

Which element has the highest electronegativity?

Back

Fluorine (F) has the highest electronegativity.

Front

What is ionization energy?

Back

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

Front

Define electron affinity.

Back

Electron affinity is the amount of energy released when an electron is added to a neutral atom.

Front

What are the properties of alkaline earth metals?

Back

Alkaline earth metals are shiny, silvery-white, and have low density and melting points.

Front

What is the significance of the periodic table's group number?

Back

The group number indicates the number of valence electrons in the elements of that group.

Front

Explain the term 'metallic character'.

Back

Metallic character refers to the tendency of an element to lose electrons and form positive ions.